Optical image capturing system

ABSTRACT

An optical image capturing system includes, along the optical axis in order from an object side to an image side, a first lens, a second lens, a third lens, a fourth lens, a fifth lens, a sixth lens, and a seventh lens. At least one lens among the first to the sixth lenses has positive refractive force. The seventh lens has negative refractive force, wherein both surfaces thereof can be aspheric, and at least one surface thereof has an inflection point. The lenses in the optical image capturing system which have refractive power include the first to the seventh lenses. The optical image capturing system can increase aperture value and improve the imaging quality for use in compact cameras.

BACKGROUND OF THE INVENTION 1. Technical Field

The present invention generally relates to an optical system, and moreparticularly to a compact optical image capturing system for anelectronic device.

2. Description of Related Art

In recent years, with the rise of portable electronic devices havingcamera functionalities, the demand for an optical image capturing systemis raised gradually. The image sensing device of the ordinaryphotographing camera is commonly selected from charge coupled device(CCD) or complementary metal-oxide semiconductor sensor (CMOS Sensor).Also, as advanced semiconductor manufacturing technology enables theminimization of the pixel size of the image sensing device, thedevelopment of the optical image capturing system towards the field ofhigh pixels. Therefore, the requirement for high imaging quality israpidly raised.

The conventional optical system of the portable electronic deviceusually has five or sixth lenses. However, the optical system is askedto take pictures in a dark environment, in other words, the opticalsystem is asked to have a large aperture. The conventional opticalsystem provides high optical performance as required.

It is an important issue to increase the quantity of light entering thelens. Also, the modern lens is also asked to have several characters,including high image quality.

BRIEF SUMMARY OF THE INVENTION

The aspect of embodiment of the present disclosure directs to an opticalimage capturing system and an optical image capturing lens which usecombination of refractive powers, convex and concave surfaces ofseven-piece optical lenses (the convex or concave surface in thedisclosure denotes the geometrical shape of an image-side surface or anobject-side surface of each lens on an optical axis) to increase thequantity of incoming light of the optical image capturing system, and toimprove imaging quality for image formation, so as to be applied tominimized electronic products.

The term and its definition to the lens parameter in the embodiment ofthe present are shown as below for further reference.

The lens parameter related to a length or a height in the lens:

A maximum height for image formation of the optical image capturingsystem is denoted by HOI. A height of the optical image capturing systemis denoted by HOS. A distance from the object-side surface of the firstlens to the image-side surface of the seventh lens is denoted by InTL. Adistance from the first lens to the second lens is denoted by IN12(instance). A central thickness of the first lens of the optical imagecapturing system on the optical axis is denoted by TP1 (instance).

The lens parameter related to a material in the lens:

An Abbe number of the first lens in the optical image capturing systemis denoted by NA1 (instance). A refractive index of the first lens isdenoted by Nd1 (instance).

The lens parameter related to a view angle of the lens:

A view angle is denoted by AF. Half of the view angle is denoted by HAF.A major light angle is denoted by MRA.

The lens parameter related to exit/entrance pupil in the lens:

An entrance pupil diameter of the optical image capturing system isdenoted by HEP. For any surface of any lens, a maximum effective halfdiameter (EHD) is a perpendicular distance between an optical axis and acrossing point on the surface where the incident light with a maximumviewing angle of the system passing the very edge of the entrance pupil.For example, the maximum effective half diameter of the object-sidesurface of the first lens is denoted by EHD11, the maximum effectivehalf diameter of the image-side surface of the first lens is denoted byEHD12, the maximum effective half diameter of the object-side surface ofthe second lens is denoted by EHD21, the maximum effective half diameterof the image-side surface of the second lens is denoted by EHD22, and soon.

The lens parameter related to a depth of the lens shape:

A displacement from a point on the object-side surface of the seventhlens, which is passed through by the optical axis, to a point on theoptical axis, where a projection of the maximum effective semi diameterof the object-side surface of the seventh lens ends, is denoted byInRS71 (the depth of the maximum effective semi diameter). Adisplacement from a point on the image-side surface of the seventh lens,which is passed through by the optical axis, to a point on the opticalaxis, where a projection of the maximum effective semi diameter of theimage-side surface of the seventh lens ends, is denoted by InRS72 (thedepth of the maximum effective semi diameter). The depth of the maximumeffective semi diameter (sinkage) on the object-side surface or theimage-side surface of any other lens is denoted in the same manner.

The lens parameter related to the lens shape:

A critical point C is a tangent point on a surface of a specific lens,and the tangent point is tangent to a plane perpendicular to the opticalaxis and the tangent point cannot be a crossover point on the opticalaxis. Following the above description, a distance perpendicular to theoptical axis between a critical point C51 on the object-side surface ofthe fifth lens and the optical axis is HVT51 (instance), and a distanceperpendicular to the optical axis between a critical point C52 on theimage-side surface of the fifth lens and the optical axis is HVT52(instance). A distance perpendicular to the optical axis between acritical point C61 on the object-side surface of the sixth lens and theoptical axis is HVT61 (instance), and a distance perpendicular to theoptical axis between a critical point C62 on the image-side surface ofthe sixth lens and the optical axis is HVT62 (instance). A distanceperpendicular to the optical axis between a critical point on theobject-side or image-side surface of other lenses, such as the seventhlens, the optical axis is denoted in the same manner.

The object-side surface of the seventh lens has one inflection pointIF711 which is nearest to the optical axis, and the sinkage value of theinflection point IF711 is denoted by SGI711 (instance). A distanceperpendicular to the optical axis between the inflection point IF711 andthe optical axis is HIF711 (instance). The image-side surface of theseventh lens has one inflection point IF721 which is nearest to theoptical axis, and the sinkage value of the inflection point IF721 isdenoted by SGI721 (instance). A distance perpendicular to the opticalaxis between the inflection point IF721 and the optical axis is HIF721(instance).

The object-side surface of the seventh lens has one inflection pointIF712 which is the second nearest to the optical axis, and the sinkagevalue of the inflection point IF712 is denoted by SGI712 (instance). Adistance perpendicular to the optical axis between the inflection pointIF712 and the optical axis is HIF712 (instance). The image-side surfaceof the seventh lens has one inflection point IF722 which is the secondnearest to the optical axis, and the sinkage value of the inflectionpoint IF722 is denoted by SGI722 (instance). A distance perpendicular tothe optical axis between the inflection point IF722 and the optical axisis HIF722 (instance).

The object-side surface of the seventh lens has one inflection pointIF713 which is the third nearest to the optical axis, and the sinkagevalue of the inflection point IF713 is denoted by SGI713 (instance). Adistance perpendicular to the optical axis between the inflection pointIF713 and the optical axis is HIF713 (instance). The image-side surfaceof the seventh lens has one inflection point IF723 which is the thirdnearest to the optical axis, and the sinkage value of the inflectionpoint IF723 is denoted by SGI723 (instance). A distance perpendicular tothe optical axis between the inflection point IF723 and the optical axisis HIF723 (instance).

The object-side surface of the seventh lens has one inflection pointIF714 which is the fourth nearest to the optical axis, and the sinkagevalue of the inflection point IF714 is denoted by SGI714 (instance). Adistance perpendicular to the optical axis between the inflection pointIF714 and the optical axis is HIF714 (instance). The image-side surfaceof the seventh lens has one inflection point IF724 which is the fourthnearest to the optical axis, and the sinkage value of the inflectionpoint IF724 is denoted by SGI724 (instance). A distance perpendicular tothe optical axis between the inflection point IF724 and the optical axisis HIF724 (instance).

An inflection point, a distance perpendicular to the optical axisbetween the inflection point and the optical axis, and a sinkage valuethereof on the object-side surface or image-side surface of other lensesis denoted in the same manner.

The lens parameter related to an aberration:

Optical distortion for image formation in the optical image capturingsystem is denoted by ODT. TV distortion for image formation in theoptical image capturing system is denoted by TDT. Further, the range ofthe aberration offset for the view of image formation may be limited to50%-100% field. An offset of the spherical aberration is denoted by DFS.An offset of the coma aberration is denoted by DFC.

A modulation transfer function (MTF) graph of an optical image capturingsystem is used to test and evaluate the contrast and sharpness of thegenerated images. The vertical axis of the coordinate system of the MTFgraph represents the contrast transfer rate, of which the value isbetween 0 and 1, and the horizontal axis of the coordinate systemrepresents the spatial frequency, of which the unit is cycles/mm orlp/mm, i.e., line pairs per millimeter. Theoretically, a perfect opticalimage capturing system can present all detailed contrast and every lineof an object in an image. However, the contrast transfer rate of apractical optical image capturing system along a vertical axis thereofwould be less than 1. In addition, peripheral areas in an image wouldhave a poorer realistic effect than a center area thereof has. Forvisible spectrum, the values of MTF in the spatial frequency of 55cycles/mm at the optical axis, 0.3 field of view, and 0.7 field of viewon an image plane are respectively denoted by MTFE0, MTFE3, and MTFE7;the values of MTF in the spatial frequency of 110 cycles/mm at theoptical axis, 0.3 field of view, and 0.7 field of view on an image planeare respectively denoted by MTFQ0, MTFQ3, and MTFQ7; the values of MTFin the spatial frequency of 220 cycles/mm at the optical axis, 0.3 fieldof view, and 0.7 field of view on an image plane are respectivelydenoted by MTFH0, MTFH3, and MTFH7; the values of MTF in the spatialfrequency of 440 cycles/mm at the optical axis, 0.3 field of view, and0.7 field of view on the image plane are respectively denoted by MTF0,MTF3, and MTF7. The three aforementioned fields of view respectivelyrepresent the center, the inner field of view, and the outer field ofview of a lens, and, therefore, can be used to evaluate the performanceof an optical image capturing system. If the optical image capturingsystem provided in the present invention corresponds to photosensitivecomponents which provide pixels having a size no large than 1.12micrometer, a quarter of the spatial frequency, a half of the spatialfrequency (half frequency), and the full spatial frequency (fullfrequency) of the MTF diagram are respectively at least 110 cycles/mm,220 cycles/mm and 440 cycles mm.

If an optical image capturing system is required to be able also toimage for infrared spectrum, e.g., to be used in low-light environments,then the optical image capturing system should be workable inwavelengths of 850 nm or 800 nm. Since the main function for an opticalimage capturing system used in low-light environment is to distinguishthe shape of objects by light and shade, which does not require highresolution, it is appropriate to only use spatial frequency less than110 cycles/mm for evaluating the performance of optical image capturingsystem in the infrared spectrum. When the aforementioned wavelength of850 nm focuses on the image plane, the contrast transfer rates (i.e.,the values of MTF) in spatial frequency of 55 cycles/mm at the opticalaxis, 0.3 field of view, and 0.7 field of view on an image plane arerespectively denoted by MTFI0, MTFI3, and MTFI7. However, infraredwavelengths of 850 nm or 800 nm are far away from the wavelengths ofvisible light; it would be difficult to design an optical imagecapturing system capable of focusing visible and infrared light (i.e.,dual-mode) at the same time and achieving certain performance.

The present invention provides an optical image capturing system, whichis capable of focusing visible and infrared light (i.e., dual-mode) atthe same time and achieving certain performance, wherein the seventhlens thereof is provided with an inflection point at the object-sidesurface or at the image-side surface to adjust the incident angle ofeach view field and modify the ODT and the TDT. In addition, thesurfaces of the seventh lens are capable of modifying the optical pathto improve the imagining quality.

The optical image capturing system of the present invention includes afirst lens, a second lens, a third lens, a fourth lens, a fifth lens, asixth lens, a seventh lens, and an image plane in order along an opticalaxis from an object side to an image side. The first lens has refractivepower. The optical image capturing system satisfies:1.0≤f/HEP≤10.0; 0 deg<HAF≤50 deg and 0.5≤SETP/STP<1;

where f1, f2, f3, f4, f5, f6, and f7 are respectively a focal length ofthe first lens to the seventh lens; f is a focal length of the opticalimage capturing system; HEP is an entrance pupil diameter of the opticalimage capturing system; HOS is a distance between the object-sidesurface of the first lens and the image plane; InTL is a distance fromthe object-side surface of the first lens to the image-side surface ofthe seventh lens on the optical axis; HAF is a half of the maximum fieldangle of the optical image capturing system; ETP1, ETP2, ETP3, ETP4,ETP5, ETP6, and ETP7 are respectively a thickness in parallel with theoptical axis at a height of ½ HEP of the first lens to the seventh lens,wherein SETP is a sum of the aforementioned ETP1 to ETP7; TP1, TP2, TP3,TP4, TP5, TP6, and TP7 are respectively a thickness at the optical axisof the first lens to the seventh lens, wherein STP is a sum of theaforementioned TP1 to TP7.

The present invention further provides an optical image capturingsystem, including a first lens, a second lens, a third lens, a fourthlens, a fifth lens, a sixth lens, a seventh lens, and an image plane, inorder along an optical axis from an object side to an image side. Thefirst lens has refractive power. The second lens has refractive power.The third lens has refractive power. The fourth lens has refractivepower. The fifth lens has refractive power. The sixth lens hasrefractive power. The seventh lens has refractive power. At least onesurface of each of at least one lens among the first lens to the seventhlens has at least an inflection point thereon. The optical imagecapturing system satisfies:1.0≤f/HEP≤10.0; 0 deg<HAF≤50 deg and 0.2≤EIN/ETL<1;

where f1, f2, f3, f4, f5, f6, and f7 are respectively a focal length ofthe first lens to the seventh lens; f is a focal length of the opticalimage capturing system; HEP is an entrance pupil diameter of the opticalimage capturing system; HOS is a distance between the object-sidesurface of the first lens and the image plane; InTL is a distance fromthe object-side surface of the first lens to the image-side surface ofthe seventh lens on the optical axis; HAF is a half of the maximum fieldangle of the optical image capturing system; ETL is a distance inparallel with the optical axis between a coordinate point at a height of½ HEP on the object-side surface of the first lens and the image plane;EIN is a distance in parallel with the optical axis between thecoordinate point at the height of ½ HEP on the object-side surface ofthe first lens and a coordinate point at a height of ½ HEP on theimage-side surface of the seventh lens.

The present invention further provides an optical image capturingsystem, including a first lens, a second lens, a third lens, a fourthlens, a fifth lens, a sixth lens, a seventh lens, and an image plane, inorder along an optical axis from an object side to an image side. Thenumber of the lenses having refractive power in the optical imagecapturing system is seven. At least one surface of each of at least twolenses among the first lens to the seventh lens has at least aninflection point thereon. The first lens has refractive power, and thesecond lens has refractive power. The third lens has refractive power.The fourth lens has refractive power. The fifth lens has refractivepower. The sixth lens has refractive power. The seventh lens hasrefractive power. The optical image capturing system satisfies:1.0≤f/HEP≤10; 0 deg<HAF≤50 deg and 0.2≤EIN/ETL<1;

where f1, f2, f3, f4, f5, f6, and f7 are respectively a focal length ofthe first lens to the seventh lens; f is a focal length of the opticalimage capturing system; HEP is an entrance pupil diameter of the opticalimage capturing system; HOS is a distance between a point on anobject-side surface, which face the object side, of the first lens wherethe optical axis passes through and a point on the image plane where theoptical axis passes through; InTL is a distance from the object-sidesurface of the first lens to the image-side surface of the seventh lenson the optical axis; HAF is a half of the maximum field angle of theoptical image capturing system; ETL is a distance in parallel with theoptical axis between a coordinate point at a height of ½ HEP on theobject-side surface of the first lens and the image plane; EIN is adistance in parallel with the optical axis between the coordinate pointat the height of ½ HEP on the object-side surface of the first lens anda coordinate point at a height of ½ HEP on the image-side surface of theseventh lens.

For any lens, the thickness at the height of a half of the entrancepupil diameter (HEP) particularly affects the ability of correctingaberration and differences between optical paths of light in differentfields of view of the common region of each field of view of lightwithin the covered range at the height of a half of the entrance pupildiameter (HEP). With greater thickness, the ability to correctaberration is better. However, the difficulty of manufacturing increasesas well. Therefore, the thickness at the height of a half of theentrance pupil diameter (HEP) of any lens has to be controlled. Theratio between the thickness (ETP) at the height of a half of theentrance pupil diameter (HEP) and the thickness (TP) of any lens on theoptical axis (i.e., ETP/TP) has to be particularly controlled. Forexample, the thickness at the height of a half of the entrance pupildiameter (HEP) of the first lens is denoted by ETP1, the thickness atthe height of a half of the entrance pupil diameter (HEP) of the secondlens is denoted by ETP2, and the thickness at the height of a half ofthe entrance pupil diameter (HEP) of any other lens in the optical imagecapturing system is denoted in the same manner. The optical imagecapturing system of the present invention satisfies:0.3≤SETP/EIN<1;

where SETP is the sum of the aforementioned ETP1 to ETP5.

In order to enhance the ability of correcting aberration and to lowerthe difficulty of manufacturing at the same time, the ratio between thethickness (ETP) at the height of a half of the entrance pupil diameter(HEP) and the thickness (TP) of any lens on the optical axis (i.e.,ETP/TP) has to be particularly controlled. For example, the thickness atthe height of a half of the entrance pupil diameter (HEP) of the firstlens is denoted by ETP1, the thickness of the first lens on the opticalaxis is TP1, and the ratio between these two parameters is ETP1/TP1; thethickness at the height of a half of the entrance pupil diameter (HEP)of the first lens is denoted by ETP2, the thickness of the second lenson the optical axis is TP2, and the ratio between these two parametersis ETP2/TP2. The ratio between the thickness at the height of a half ofthe entrance pupil diameter (HEP) and the thickness of any other lens inthe optical image capturing system is denoted in the same manner. Theoptical image capturing system of the present invention satisfies:0.2≤ETP/TP≤3.

The horizontal distance between two neighboring lenses at the height ofa half of the entrance pupil diameter (HEP) is denoted by ED, whereinthe aforementioned horizontal distance (ED) is parallel to the opticalaxis of the optical image capturing system, and particularly affects theability of correcting aberration and differences between optical pathsof light in different fields of view of the common region of each fieldof view of light at the height of a half of the entrance pupil diameter(HEP). With longer distance, the ability to correct aberration ispotential to be better. However, the difficulty of manufacturingincreases, and the feasibility of “slightly shorten” the length of theoptical image capturing system is limited as well. Therefore, thehorizontal distance (ED) between two specific neighboring lenses at theheight of a half of the entrance pupil diameter (HEP) has to becontrolled.

In order to enhance the ability of correcting aberration and to lowerthe difficulty of “slightly shorten” the length of the optical imagecapturing system at the same time, the ratio between the horizontaldistance (ED) between two neighboring lenses at the height of a half ofthe entrance pupil diameter (HEP) and the parallel distance (IN) betweenthese two neighboring lens on the optical axis (i.e., ED/IN) has to beparticularly controlled. For example, the horizontal distance betweenthe first lens and the second lens at the height of a half of theentrance pupil diameter (HEP) is denoted by ED12, the horizontaldistance between the first lens and the second lens on the optical axisis denoted by IN12, and the ratio between these two parameters isED12/IN12; the horizontal distance between the second lens and the thirdlens at the height of a half of the entrance pupil diameter (HEP) isdenoted by ED23, the horizontal distance between the second lens and thethird lens on the optical axis is denoted by IN23, and the ratio betweenthese two parameters is ED23/IN23. The ratio between the horizontaldistance between any two neighboring lenses at the height of a half ofthe entrance pupil diameter (HEP) and the horizontal distance betweenthese two neighboring lenses on the optical axis is denoted in the samemanner.

The horizontal distance in parallel with the optical axis between acoordinate point at the height of ½ HEP on the image-side surface of theseventh lens and image surface is denoted by EBL. The horizontaldistance in parallel with the optical axis between the point on theimage-side surface of the seventh lens where the optical axis passesthrough and the image plane is denoted by BL. To enhance the ability tocorrect aberration and to preserve more space for other opticalcomponents, the optical image capturing system of the present inventioncan satisfy 0.2≤EBL/BL≤1.5. The optical image capturing system canfurther include a filtering component, which is provided between theseventh lens and the image plane, wherein the horizontal distance inparallel with the optical axis between the coordinate point at theheight of ½ HEP on the image-side surface of the seventh lens and thefiltering component is denoted by EIR, and the horizontal distance inparallel with the optical axis between the point on the image-sidesurface of the seventh lens where the optical axis passes through andthe filtering component is denoted by PIR. The optical image capturingsystem of the present invention can satisfy 0.1≤EIR/PIR≤1.

In an embodiment, a height of the optical image capturing system (HOS)can be reduced while |f1|>|f7|.

In an embodiment, when the lenses satisfy |f2|+|f3|+|f4|+|f5|+|f6| and|f1|+|f7|, at least one lens among the second to the sixth lenses couldhave weak positive refractive power or weak negative refractive power.Herein the weak refractive power means the absolute value of the focallength of one specific lens is greater than 10. When at least one lensamong the second to the sixth lenses has weak positive refractive power,it may share the positive refractive power of the first lens, and on thecontrary, when at least one lens among the second to the sixth lenseshas weak negative refractive power, it may fine tune and correct theaberration of the system.

In an embodiment, the seventh lens could have negative refractive power,and an image-side surface thereof is concave, it may reduce back focallength and size. Besides, the seventh lens can have at least aninflection point on at least a surface thereof, which may reduce anincident angle of the light of an off-axis field of view and correct theaberration of the off-axis field of view.

BRIEF DESCRIPTION OF THE SEVERAL VIEWS OF THE DRAWINGS

The present invention will be best understood by referring to thefollowing detailed description of some illustrative embodiments inconjunction with the accompanying drawings, in which

FIG. 1A is a schematic diagram of a first embodiment of the presentinvention;

FIG. 1B shows curve diagrams of longitudinal spherical aberration,astigmatic field, and optical distortion of the optical image capturingsystem in the order from left to right of the first embodiment of thepresent application;

FIG. 1C shows a feature map of modulation transformation of the opticalimage capturing system of the first embodiment of the presentapplication in visible spectrum;

FIG. 2A is a schematic diagram of a second embodiment of the presentinvention;

FIG. 2B shows curve diagrams of longitudinal spherical aberration,astigmatic field, and optical distortion of the optical image capturingsystem in the order from left to right of the second embodiment of thepresent application;

FIG. 2C shows a feature map of modulation transformation of the opticalimage capturing system of the second embodiment of the presentapplication in visible spectrum;

FIG. 3A is a schematic diagram of a third embodiment of the presentinvention;

FIG. 3B shows curve diagrams of longitudinal spherical aberration,astigmatic field, and optical distortion of the optical image capturingsystem in the order from left to right of the third embodiment of thepresent application;

FIG. 3C shows a feature map of modulation transformation of the opticalimage capturing system of the third embodiment of the presentapplication in visible spectrum;

FIG. 4A is a schematic diagram of a fourth embodiment of the presentinvention;

FIG. 4B shows curve diagrams of longitudinal spherical aberration,astigmatic field, and optical distortion of the optical image capturingsystem in the order from left to right of the fourth embodiment of thepresent application;

FIG. 4C shows a feature map of modulation transformation of the opticalimage capturing system of the fourth embodiment in visible spectrum;

FIG. 5A is a schematic diagram of a fifth embodiment of the presentinvention;

FIG. 5B shows curve diagrams of longitudinal spherical aberration,astigmatic field, and optical distortion of the optical image capturingsystem in the order from left to right of the fifth embodiment of thepresent application;

FIG. 5C shows a feature map of modulation transformation of the opticalimage capturing system of the fifth embodiment of the presentapplication in visible spectrum;

FIG. 6A is a schematic diagram of a sixth embodiment of the presentinvention;

FIG. 6B shows curve diagrams of longitudinal spherical aberration,astigmatic field, and optical distortion of the optical image capturingsystem in the order from left to right of the sixth embodiment of thepresent application; and

FIG. 6C shows a feature map of modulation transformation of the opticalimage capturing system of the sixth embodiment of the presentapplication in visible spectrum.

DETAILED DESCRIPTION OF THE INVENTION

An optical image capturing system of the present invention includes afirst lens, a second lens, a third lens, a fourth lens, a fifth lens, asixth lens, a seventh lens, and an image plane from an object side to animage side. The optical image capturing system further is provided withan image sensor at an image plane. Image heights in the followingembodiments are all almost 3.91 mm.

The optical image capturing system can work in three wavelengths,including 486.1 nm, 587.5 nm, and 656.2 nm, wherein 587.5 nm is the mainreference wavelength and is the reference wavelength for obtaining thetechnical characters. The optical image capturing system can also workin five wavelengths, including 470 nm, 510 nm, 555 nm, 610 nm, and 650nm wherein 555 nm is the main reference wavelength, and is the referencewavelength for obtaining the technical characters.

The optical image capturing system of the present invention satisfies0.5≤ΣPPR/|ΣNPR|≤15, and a preferable range is 1≤ΣPPR/|ΣNPR|≤3.0, wherePPR is a ratio of the focal length f of the optical image capturingsystem to a focal length fp of each of lenses with positive refractivepower; NPR is a ratio of the focal length f of the optical imagecapturing system to a focal length fn of each of lenses with negativerefractive power; ΣPPR is a sum of the PPRs of each positive lens; andΣNPR is a sum of the NPRs of each negative lens. It is helpful forcontrol of an entire refractive power and an entire length of theoptical image capturing system.

The image sensor is provided on the image plane. The optical imagecapturing system of the present invention satisfies HOS/HOI≤10 and0.5≤HOS/f≤10, and a preferable range is 1≤HOS/HOI≤5 and 1≤HOS/f≤7, whereHOI is a half of a diagonal of an effective sensing area of the imagesensor, i.e., the maximum image height, and HOS is a height of theoptical image capturing system, i.e. a distance on the optical axisbetween the object-side surface of the first lens and the image plane.It is helpful for reduction of the size of the system for used incompact cameras.

The optical image capturing system of the present invention further isprovided with an aperture to increase image quality.

In the optical image capturing system of the present invention, theaperture could be a front aperture or a middle aperture, wherein thefront aperture is provided between the object and the first lens, andthe middle is provided between the first lens and the image plane. Thefront aperture provides a long distance between an exit pupil of thesystem and the image plane, which allows more elements to be installed.The middle could enlarge a view angle of view of the system and increasethe efficiency of the image sensor. The optical image capturing systemsatisfies 0.2≤InS/HOS≤1.1, where InS is a distance between the apertureand the image-side surface of the sixth lens. It is helpful for sizereduction and wide angle.

The optical image capturing system of the present invention satisfies0.1≤ΣTP/InTL≤0.9, where InTL is a distance between the object-sidesurface of the first lens and the image-side surface of the seventhlens, and ΣTP is a sum of central thicknesses of the lenses on theoptical axis. It is helpful for the contrast of image and yield rate ofmanufacture and provides a suitable back focal length for installationof other elements.

The optical image capturing system of the present invention satisfies0.001≤|R1/R2|≤20, and a preferable range is 0.01≤|R1/R2|<10, where R1 isa radius of curvature of the object-side surface of the first lens, andR2 is a radius of curvature of the image-side surface of the first lens.It provides the first lens with a suitable positive refractive power toreduce the increase rate of the spherical aberration.

The optical image capturing system of the present invention satisfies−7<(R13−R14)/(R13+R14)<50, where R13 is a radius of curvature of theobject-side surface of the seventh lens, and R14 is a radius ofcurvature of the image-side surface of the seventh lens. It may modifythe astigmatic field curvature.

The optical image capturing system of the present invention satisfiesIN12/f≤3.0, where IN12 is a distance on the optical axis between thefirst lens and the second lens. It may correct chromatic aberration andimprove the performance.

The optical image capturing system of the present invention satisfiesIN67/f≤0.8, where IN67 is a distance on the optical axis between thesixth lens and the seventh lens. It may correct chromatic aberration andimprove the performance.

The optical image capturing system of the present invention satisfies0.1>(TP1+IN12)/TP2≤10, where TP1 is a central thickness of the firstlens on the optical axis, and TP2 is a central thickness of the secondlens on the optical axis. It may control the sensitivity of manufactureof the system and improve the performance.

The optical image capturing system of the present invention satisfies0.1≤(TP7+IN67)/TP6≤10, where TP6 is a central thickness of the sixthlens on the optical axis, TP7 is a central thickness of the seventh lenson the optical axis, and IN67 is a distance between the sixth lens andthe seventh lens. It may control the sensitivity of manufacture of thesystem and improve the performance.

The optical image capturing system of the present invention satisfies0.1≤TP4/(IN34+TP4+IN45)<1, where TP3 is a central thickness of the thirdlens on the optical axis, TP4 is a central thickness of the fourth lenson the optical axis, TP5 is a central thickness of the fifth lens on theoptical axis, IN34 is a distance on the optical axis between the thirdlens and the fourth lens, IN45 is a distance on the optical axis betweenthe fourth lens and the fifth lens, and InTL is a distance between theobject-side surface of the first lens and the image-side surface of theseventh lens. It may fine tune and correct the aberration of theincident rays layer by layer, and reduce the height of the system.

The optical image capturing system satisfies 0 mm≤HVT71≤3 mm; 0mm<HVT72≤6 mm; 0≤HVT71/HVT72; 0 mm≤|SGC71|≤0.5 mm; 0 mm<|SGC72|≤2 mm;and 0<|SGC72|/(|SGC72|+TP7)≤0.9, where HVT71 a distance perpendicular tothe optical axis between the critical point C71 on the object-sidesurface of the seventh lens and the optical axis; HVT72 a distanceperpendicular to the optical axis between the critical point C72 on theimage-side surface of the seventh lens and the optical axis; SGC71 is adistance on the optical axis between a point on the object-side surfaceof the seventh lens where the optical axis passes through and a pointwhere the critical point C71 projects on the optical axis; SGC72 is adistance on the optical axis between a point on the image-side surfaceof the seventh lens where the optical axis passes through and a pointwhere the critical point C72 projects on the optical axis. It is helpfulto correct the off-axis view field aberration.

The optical image capturing system satisfies 0.2≤HVT72/HOI=0.9, andpreferably satisfies 0.3≤HVT72/HOI≤0.8. It may help to correct theperipheral aberration.

The optical image capturing system satisfies 0≤HVT72/HOS≤0.5, andpreferably satisfies 0.2≤HVT72/HOS≤0.45. It may help to correct theperipheral aberration.

The optical image capturing system of the present invention satisfies0<SGI711/(SGI711+TP7)≤0.9; 0<SGI721/(SGI721+TP7)≤0.9, and it ispreferable to satisfy 0.1≤SGI711/(SGI711+TP7)≤0.6;0.1≤SGI721/(SGI721+TP7)≤0.6, where SGI711 is a displacement on theoptical axis from a point on the object-side surface of the seventhlens, through which the optical axis passes, to a point where theinflection point on the object-side surface, which is the closest to theoptical axis, projects on the optical axis, and SGI721 is a displacementon the optical axis from a point on the image-side surface of theseventh lens, through which the optical axis passes, to a point wherethe inflection point on the image-side surface, which is the closest tothe optical axis, projects on the optical axis.

The optical image capturing system of the present invention satisfies0<SGI712/(SGI712+TP7)≤0.9; 0<SGI722/(SGI722+TP7)≤0.9, and it ispreferable to satisfy 0.1≤SGI712/(SGI712+TP7)≤0.6;0.1≤SGI722/(SGI722+TP7)≤0.6, where SGI712 is a displacement on theoptical axis from a point on the object-side surface of the seventhlens, through which the optical axis passes, to a point where theinflection point on the object-side surface, which is the second closestto the optical axis, projects on the optical axis, and SGI722 is adisplacement on the optical axis from a point on the image-side surfaceof the seventh lens, through which the optical axis passes, to a pointwhere the inflection point on the object-side surface, which is thesecond closest to the optical axis, projects on the optical axis.

The optical image capturing system of the present invention satisfies0.001 mm≤|HIF711|≤5 mm; 0.001 mm≤|HIF721|≤5 mm, and it is preferable tosatisfy 0.1 mm≤|HIF711|≤3.5 mm; 1.5 mm≤|HIF721|≤3.5 mm, where HIF711 isa distance perpendicular to the optical axis between the inflectionpoint on the object-side surface of the seventh lens, which is theclosest to the optical axis, and the optical axis; HIF721 is a distanceperpendicular to the optical axis between the inflection point on theimage-side surface of the seventh lens, which is the closest to theoptical axis, and the optical axis.

The optical image capturing system of the present invention satisfies0.001 mm≤|HIF712|≤5 mm; 0.001 mm≤|HIF722|≤5 mm, and it is preferable tosatisfy 0.1 mm≤|HIF722|≤3.5 mm; 0.1 mm≤|HIF712|≤3.5 mm, where HIF712 isa distance perpendicular to the optical axis between the inflectionpoint on the object-side surface of the seventh lens, which is thesecond closest to the optical axis, and the optical axis; HIF722 is adistance perpendicular to the optical axis between the inflection pointon the image-side surface of the seventh lens, which is the secondclosest to the optical axis, and the optical axis.

The optical image capturing system of the present invention satisfies0.001 mm≤|HIF713|≤5 mm; 0.001 mm≤|HIF723|≤5 mm, and it is preferable tosatisfy 0.1 mm≤|HIF723|≤3.5 mm; 0.1 mm≤|HIF713|≤3.5 mm, where HIF713 isa distance perpendicular to the optical axis between the inflectionpoint on the object-side surface of the seventh lens, which is the thirdclosest to the optical axis, and the optical axis; HIF723 is a distanceperpendicular to the optical axis between the inflection point on theimage-side surface of the seventh lens, which is the third closest tothe optical axis, and the optical axis.

The optical image capturing system of the present invention satisfies0.001 mm≤|HIF714|≤5 mm; 0.001 mm≤|HIF724|≤5 mm, and it is preferable tosatisfy 0.1 mm>|HIF724|≤3.5 mm; 0.1 mm≤|HIF714|≤3.5 mm, where HIF714 isa distance perpendicular to the optical axis between the inflectionpoint on the object-side surface of the seventh lens, which is thefourth closest to the optical axis, and the optical axis; HIF724 is adistance perpendicular to the optical axis between the inflection pointon the image-side surface of the seventh lens, which is the fourthclosest to the optical axis, and the optical axis.

In an embodiment, the lenses of high Abbe number and the lenses of lowAbbe number are arranged in an interlaced arrangement that could behelpful for correction of aberration of the system.

An equation of aspheric surface isz=ch ²/[1+[1(k+1)c ² h ²]^(0.5) ]+A4h ⁴ +A6h ⁶ +A8h ⁸ +A10h ¹⁰ +A12h ¹²+A14h ¹⁴ +A16h ¹⁶ +A18h ¹⁸ A20h ²⁰+ . . .   (1)

where z is a depression of the aspheric surface; k is conic constant; cis reciprocal of the radius of curvature; and A4, A6, A8, A10, A12, A14,A16, A18, and A20 are high-order aspheric coefficients.

In the optical image capturing system, the lenses could be made ofplastic or glass. The plastic lenses may reduce the weight and lower thecost of the system, and the glass lenses may control the thermal effectand enlarge the space for arrangement of the refractive power of thesystem. In addition, the opposite surfaces (object-side surface andimage-side surface) of the first to the seventh lenses could be asphericthat can obtain more control parameters to reduce aberration. The numberof aspheric glass lenses could be less than the conventional sphericalglass lenses, which is helpful for reduction of the height of thesystem.

When the lens has a convex surface, which means that the surface isconvex around a position, through which the optical axis passes, andwhen the lens has a concave surface, which means that the surface isconcave around a position, through which the optical axis passes.

The optical image capturing system of the present invention could beapplied in a dynamic focusing optical system. It is superior in thecorrection of aberration and high imaging quality so that it could beallied in lots of fields.

The optical image capturing system of the present invention couldfurther include a driving module to meet different demands, wherein thedriving module can be coupled with the lenses to move the lenses. Thedriving module can be a voice coil motor (VCM), which is used to movethe lens for focusing, or can be an optical image stabilization (OIS)component, which is used to lower the possibility of having the problemof image blurring which is caused by subtle movements of the lens whileshooting.

To meet different requirements, at least one lens among the first lensto the seventh lens of the optical image capturing system of the presentinvention can be a light filter, which filters out light of wavelengthshorter than 500 nm. Such effect can be achieved by coating on at leastone surface of the lens, or by using materials capable of filtering outshort waves to make the lens.

To meet different requirements, the image plane of the optical imagecapturing system in the present invention can be either flat or curved.If the image plane is curved (e.g., a sphere with a radius ofcurvature), the incidence angle required for focusing light on the imageplane can be decreased, which is not only helpful to shorten the lengthof the system (TTL), but also helpful to increase the relativeilluminance.

We provide several embodiments in conjunction with the accompanyingdrawings for the best understanding, which are:

First Embodiment

As shown in FIG. 1A and FIG. 1B, an optical image capturing system 10 ofthe first embodiment of the present invention includes, along an opticalaxis from an object side to an image side, a first lens 110, an aperture100, a second lens 120, a third lens 130, a fourth lens 140, a fifthlens 150, a sixth lens 160, a seventh lens 170, an infrared rays filter180, an image plane 190, and an image sensor 192. FIG. 1C shows amodulation transformation of the optical image capturing system 10 ofthe first embodiment of the present application in visible spectrum.

The first lens 110 has negative refractive power and is made of plastic.An object-side surface 112 thereof, which faces the object side, is aconcave aspheric surface, and an image-side surface 114 thereof, whichfaces the image side, is a concave aspheric surface. The object-sidesurface 112 has an inflection point, and the image-side surface 114 hastwo inflection points. A thickness of the first lens 110 on the opticalaxis is TP1, and a thickness of the first lens 110 at the height of ahalf of the entrance pupil diameter (HEP) is denoted by ETP1.

The first lens satisfies SGI111=−0.1110 mm; SGI121=2.7120 mm; TP1=2.2761mm; |SGI111|/(|SGI111|+TP1)=0.0465; |SGI121|/(|SGI121|+TP1)=0.5437,where a displacement on the optical axis from a point on the object-sidesurface of the first lens, through which the optical axis passes, to apoint where the inflection point on the image-side surface, which is theclosest to the optical axis, projects on the optical axis, is denoted bySGI111, and a displacement on the optical axis from a point on theimage-side surface of the first lens, through which the optical axispasses, to a point where the inflection point on the image-side surface,which is the closest to the optical axis, projects on the optical axisis denoted by SGI121.

The first lens satisfies SGI112=0 mm; SGI122=4.2315 mm;|SGI112|/(|SGI112|+TP1)=0; |SGI122|/(|SGI122|+TP1)=0.6502, where adisplacement on the optical axis from a point on the object-side surfaceof the first lens, through which the optical axis passes, to a pointwhere the inflection point on the image-side surface, which is thesecond closest to the optical axis, projects on the optical axis, isdenoted by SGI112, and a displacement on the optical axis from a pointon the image-side surface of the first lens, through which the opticalaxis passes, to a point where the inflection point on the image-sidesurface, which is the second closest to the optical axis, projects onthe optical axis is denoted by SGI122.

The first lens satisfies HIF111=12.8432 mm; HIF111/HOI=1.7127;HIF121=7.1744 mm; HIF121/HOI=0.9567, where a displacement perpendicularto the optical axis from a point on the object-side surface of the firstlens, through which the optical axis passes, to the inflection point,which is the closest to the optical axis is denoted by HIF111, and adisplacement perpendicular to the optical axis from a point on theimage-side surface of the first lens, through which the optical axispasses, to the inflection point, which is the closest to the opticalaxis is denoted by HIF121.

The first lens satisfies HIF112=0 mm; HIF112/HOI=0; HIF122=9.8592 mm;HIF122/HOI=1.3147, where a displacement perpendicular to the opticalaxis from a point on the object-side surface of the first lens, throughwhich the optical axis passes, to the inflection point, which is thesecond closest to the optical axis is denoted by HIF112, and adisplacement perpendicular to the optical axis from a point on theimage-side surface of the first lens, through which the optical axispasses, to the inflection point, which is the second closest to theoptical axis is denoted by HIF122.

The second lens 120 has positive refractive power and is made ofplastic. An object-side surface 122 thereof, which faces the objectside, is a convex aspheric surface, and an image-side surface 124thereof, which faces the image side, is a concave aspheric surface. Athickness of the second lens 120 on the optical axis is TP2, andthickness of the second lens 120 at the height of a half of the entrancepupil diameter (HEP) is denoted by ETP2.

For the second lens, a displacement on the optical axis from a point onthe object-side surface of the second lens, through which the opticalaxis passes, to a point where the inflection point on the image-sidesurface, which is the closest to the optical axis, projects on theoptical axis, is denoted by SGI211, and a displacement on the opticalaxis from a point on the image-side surface of the second lens, throughwhich the optical axis passes, to a point where the inflection point onthe image-side surface, which is the closest to the optical axis,projects on the optical axis is denoted by SGI221.

For the second lens, a displacement perpendicular to the optical axisfrom a point on the object-side surface of the second lens, throughwhich the optical axis passes, to the inflection point, which is theclosest to the optical axis is denoted by HIF211, and a displacementperpendicular to the optical axis from a point on the image-side surfaceof the second lens, through which the optical axis passes, to theinflection point, which is the closest to the optical axis is denoted byHIF221.

The third lens 130 has negative refractive power and is made of plastic.An object-side surface 132, which faces the object side, is a convexaspheric surface, and an image-side surface 134, which faces the imageside, is a concave aspheric surface. A thickness of the third lens 130on the optical axis is TP3, and a thickness of the third lens 130 at theheight of a half of the entrance pupil diameter (HEP) is denoted byETP3.

For the third lens 130, SGI311 is a displacement on the optical axisfrom a point on the object-side surface of the third lens, through whichthe optical axis passes, to a point where the inflection point on theobject-side surface, which is the closest to the optical axis, projectson the optical axis, and SGI321 is a displacement on the optical axisfrom a point on the image-side surface of the third lens, through whichthe optical axis passes, to a point where the inflection point on theimage-side surface, which is the closest to the optical axis, projectson the optical axis.

For the third lens 130, SGI312 is a displacement on the optical axisfrom a point on the object-side surface of the third lens, through whichthe optical axis passes, to a point where the inflection point on theobject-side surface, which is the second closest to the optical axis,projects on the optical axis, and SGI322 is a displacement on theoptical axis from a point on the image-side surface of the third lens,through which the optical axis passes, to a point where the inflectionpoint on the object-side surface, which is the second closest to theoptical axis, projects on the optical axis.

For the third lens 130, HIF311 is a distance perpendicular to theoptical axis between the inflection point on the object-side surface ofthe third lens, which is the closest to the optical axis, and theoptical axis; HIF321 is a distance perpendicular to the optical axisbetween the inflection point on the image-side surface of the thirdlens, which is the closest to the optical axis, and the optical axis.

For the third lens 130, HIF312 is a distance perpendicular to theoptical axis between the inflection point on the object-side surface ofthe third lens, which is the second closest to the optical axis, and theoptical axis; HIF322 is a distance perpendicular to the optical axisbetween the inflection point on the image-side surface of the thirdlens, which is the second closest to the optical axis, and the opticalaxis.

The fourth lens 140 has positive refractive power and is made ofplastic. An object-side surface 142, which faces the object side, is aconvex aspheric surface, and an image-side surface 144, which faces theimage side, is a convex aspheric surface. The object-side surface 142has an inflection point. A thickness of the fourth lens 140 on theoptical axis is TP4, and a thickness of the fourth lens 140 at theheight of a half or the entrance pupil diameter (HEP) is denoted byETP4.

The fourth lens 140 satisfies SGI411=0.0018 mm;|SGI411|(|SGI411|+TP4)=0.0009, where SGI411 is a displacement on theoptical axis from a point on the object-side surface of the fourth lens,through which the optical axis passes, to a point where the inflectionpoint on the object-side surface, which is the closest to the opticalaxis, projects on the optical axis, and SGI421 is a displacement on theoptical axis from a point on the image-side surface of the fourth lens,through which the optical axis passes, to a point where the inflectionpoint on the image-side surface, which is the closest to the opticalaxis, projects on the optical axis.

For the fourth lens 140, SGI412 is a displacement on the optical axisfrom a point on the object-side surface of the fourth lens, throughwhich the optical axis passes, to a point where the inflection point onthe object-side surface, which is the second closest to the opticalaxis, projects on the optical axis, and SGI422 is a displacement on theoptical axis from a point on the image-side surface of the fourth lens,through which the optical axis passes, to a point where the inflectionpoint on the object-side surface, which is the second closest to theoptical axis, projects on the optical axis.

The fourth lens 140 further satisfies HIF411=0.7191 mm;HIF411/HOI=0.0959, where HIF411 is a distance perpendicular axis betweenthe inflection point on the object-side surface of the fourth lens,which is the closest to the optical axis, and the optical axis; HIF421is a distance perpendicular to the optical axis between the inflectionpoint on the image-side surface of the fourth lens, which is the closestto the optical axis, and the optical axis.

For the fourth lens 140, HIF412 is a distance perpendicular to theoptical axis between the inflection point on the object-side surface ofthe fourth lens, which is the second closest to the optical axis, andthe optical axis; HIF422 is a distance perpendicular to the optical axisbetween the inflection point the image-side surface of the fourth lens,which is the second closest to the optical axis, and the optical axis.

The fifth lens 150 has positive refractive power and is made of plastic.An object-side surface 152, which faces the object side, is a concaveaspheric surface, and an image-side surface 154, which faces the imageside, is a convex aspheric surface. The object-side surface 152 and theimage-side surface 154 both have an inflection point. A thickness of thefifth lens 150 on the optical axis is TP5, and a thickness of the fifthlens 150 at the height of a half of the entrance pupil diameter (HEP) isdenoted by ETP5.

The fifth lens 150 satisfies SGI511=−0.1246 mm; SGI521=−2.1477 mm;|SGI511|/(|SGI511|+TP5)=0.0284; |SGI521|/(|SGI152|+TP5)=0.3346, whereSGI511 is a displacement on the optical axis from a point on theobject-side surface of the fifth lens, through which the optical axispasses, to a point where the inflection point on the object-sidesurface, which is the closest to the optical axis, projects on theoptical axis, and SGI521 is a displacement on the optical axis from apoint on the image-side surface of the fifth lens, through which theoptical axis passes, to a point where the inflection point on theimage-side surface, which is the closest to the optical axis, projectson the optical axis.

For the fifth lens 150, SGI512 is a displacement on the optical axisfrom a point on the object-side surface of the fifth lens, through whichthe optical axis passes, to a point where the inflection point on theobject-side surface, which is the second closest to the optical axis,projects on the optical axis, and SGI522 is a displacement on theoptical axis from a point on the image-side surface of the fifth lens,through which the optical axis passes, to a point where the inflectionpoint on the object-side surface, which is the second closest to theoptical axis, projects on the optical axis.

The fifth lens 150 further satisfies HIF511=3.8179 mm; HIF521=4.5480 mm;HIF511/HOI=0.5091; HIF521/HOI=0.6065, where HIF511 is a distanceperpendicular to the optical axis between the inflection point on theobject-side surface of the fifth lens, which is the closest to theoptical axis, and the optical axis; HIF521 is a distance perpendicularto the optical axis between the inflection point on the image-sidesurface of the fifth lens, which is the closest to the optical axis, andthe optical axis.

For the fifth lens 150, HIF512 is a distance perpendicular to theoptical axis between the inflection point on the object-side surface ofthe fifth lens, which is the second closest to the optical axis, and theoptical axis; HIF522 is a distance perpendicular to the optical axisbetween the inflection point on the image-side surface of the fifthlens, which is the second closest to the optical axis, and the opticalaxis.

The sixth lens 160 has negative refractive power and is made of plastic.An object-side surface 162, which faces the object side, is a convexaspheric surface, and an image-side surface 164, which faces the imageside, is a concave aspheric surface. The object-side surface 162 and theimage-side surface 164 both have an inflection point. Whereby, theincident angle of each view field entering the sixth lens 160 can beeffectively adjusted to improve aberration. A thickness of the sixthlens 160 on the optical axis is TP6, and a thickness of the sixth lens160 at the height of a half of the entrance pupil diameter (HEP) isdenoted by ETP6.

The sixth lens 160 satisfies SGI611=0.3208 mm; SGI621=0.5937 mm;|SGI611/(|SGI611|+TP6)=0.5167; |SGI621/(|SGI621|+TP6)=0.6643, whereSGI611 is a displacement on the optical axis from a point on theobject-side surface of the sixth lens, through which the optical axispasses, to a point where the inflection point on the object-sidesurface, which is the closest to the optical axis, projects on theoptical axis, and SGI621 is a displacement on the optical axis from apoint on the image-side surface of the sixth lens, through which theoptical axis passes, to a point where the inflection point on theimage-side surface, which is the closest to the optical axis, projectson the optical axis.

The sixth lens 160 further satisfies HIF611=1.9655 mm; HIF621=2.0041 mm;HIF611/HOI=0.2621; HIF621/HOI=0.2672, where HIF611 is a distanceperpendicular to the optical axis between the inflection point on theobject-side surface of the sixth lens, which is the closest to theoptical axis, and the optical axis; HIF621 is a distance perpendicularto the optical axis between the inflection point on the image-sidesurface of the sixth lens, which is the closest to the optical axis, andthe optical axis.

The seventh lens 170 has positive refractive power and is made ofplastic. An object-side surface 172, which faces the object side, is aconvex aspheric surface, and an image-side surface 174, which faces theimage side, is a concave aspheric surface. The object-side surface 172and the image-side surface 174 both have an inflection point. Athickness of the seventh lens 170 on the optical axis is TP7, and athickness of the seventh lens 170 at the height of a half of theentrance pupil diameter (HEP) is denoted by ETP7.

The seventh lens 170 satisfies SGI711=0.5212 mm; SGI721=0.5668 mm;|SGI711|/(|SGI711|+TP7)=0.3179; |SGI721/(|SGI721|+TP7)=0.3364, whereSGI711 is a displacement on the optical axis from a point on theobject-side surface of the seventh lens, through which the optical axispasses, to a point where the inflection point on the object-sidesurface, which is the closest to the optical axis, projects on theoptical axis, and SGI721 is a displacement on the optical axis from apoint on the image-side surface of the seventh lens, through which theoptical axis passes, to a point where the inflection point on theimage-side surface, which is the closest to the optical axis, projectson the optical axis.

The seventh lens 170 further satisfies HIF711=1.6707 mm; HIF721=1.8616mm; HIF711/HOI=0.2228; HIF721/HOI=0.2482, where HIF711 is a distanceperpendicular to the optical axis between the inflection point on theobject-side surface of the seventh lens, which is the closest to theoptical axis, and the optical axis; HIF721 is a distance perpendicularto the optical axis between the inflection point on the image-sidesurface of the seventh lens, which is the closest to the optical axis,and the optical axis.

A distance in parallel with the optical axis between a coordinate pointat a height of ½ HEP on the object-side surface of the first lens 110and the image plane is ETL, and a distance in parallel with the opticalaxis between the coordinate point at the height of ½ HEP on theobject-side surface of the first lens 110 and a coordinate point at aheight of ½ HEP on the image-side surface of the seventh lens 140 isEIN, which satisfies: ETL=26.980 mm; EIN=24.999 mm; EIN/ETL=0.927.

The optical image capturing system of the first embodiment satisfies:ETP1=2.470 mm; ETP2=5.144 mm; ETP3=0.898 mm; ETP4=1.706 mm; ETP5=3.901mm; ETP6=0.528 mm; ETP7=1.077 mm. The sum of the aforementioned ETP1 toETP7 is SETP, wherein SETP=15.723 mm. In addition, TP1=2.276 mm;TP2=5.240 mm; TP3=0.837 mm; TP4=2.002 mm; TP5=4.271 mm; TP6=0.300 mm;TP7=1.118 mm. The sum of the aforementioned TP1 to TP7 is STP, whereinSTP=16.044 mm. In addition, SETP/STP=0.980, and SETP/EIN=0.629.

In order to enhance the ability of correcting aberration and to lowerthe difficulty of manufacturing at the same time, the ratio between thethickness (ETP) at the height of a half of the entrance pupil diameter(HEP) and the thickness (TP) of any lens on the optical axis (i.e.,ETP/TP) in the optical image capturing system of the first embodiment isparticularly controlled, which satisfies: ETP1/TP1=1.085;ETP2/TP2=0.982; ETP3/TP3=1.073; ETP4/TP4=0.852; ETP5/TP5=0.914;ETP6/TP6=1.759; ETP7/TP7=0.963.

In order to enhance the ability of correcting aberration, lower thedifficulty of manufacturing, and “slightly shortening” the length of theoptical image capturing system at the same time, the ratio between thehorizontal distance (ED) between two neighboring lenses at the height ofa half of the entrance pupil diameter (HEP) and the parallel distance(IN) between these two neighboring lens on the optical axis (i.e.,ED/IN) in the optical image capturing system of the first embodiment isparticularly controlled, which satisfies: the horizontal distancebetween the first lens 110 and the second lens 120 at the height of ahalf of the entrance pupil diameter (HEP) is denoted by ED12, whereinED12=4.474 mm; the horizontal distance between the second lens 120 andthe third lens 130 at the height of a half of the entrance pupildiameter (HEP) is denoted by ED23, wherein ED23=0.349 mm; the horizontaldistance between the third lens 130 and the fourth lens 140 at theheight of a half of the entrance pupil diameter (HEP) is denoted byED34, wherein ED34=1.660 mm; the horizontal distance between the fourthlens 140 and the fifth lens 150 at the height of a half of the entrancepupil diameter (HEP) is denoted by ED45, wherein ED45=1.794 mm; thehorizontal distance between the fifth lens 150 and the sixth lens 160 atthe height of a half of the entrance pupil diameter (HEP) is denoted byED56, wherein ED56=0.714 mm; the horizontal distance between the sixthlens 160 and the seventh lens 170 at the height of a half of theentrance pupil diameter (HEP) is denoted by ED67, wherein ED67=0.284 mm.The sum of the aforementioned ED12 to ED67 is SED, wherein SED=9.276 mm.

The horizontal distance between the first lens 110 and the second lens120 on the optical axis is denoted by IN12, wherein and IN12=4.552 mm,and ED12/IN12=0.983. The horizontal distance between the second lens 120and the third lens 130 on the optical axis is denoted by IN23, whereinIN23=0.162 mm, and ED23/IN23=2.153. The horizontal distance between thethird lens 130 and the fourth lens 140 on the optical axis is denoted byIN34, wherein IN34=1.927 mm, and ED34/IN34=0.862. The horizontaldistance between the fourth lens 140 and the fifth lens 150 on theoptical axis is denoted by IN45, wherein IN45=1.515 mm, andED45/IN45=1.184. The horizontal distance between the fifth lens 150 andthe sixth lens 160 on the optical axis is denoted by IN56, whereinIN56=0.050 mm, and ED56/IN56=14.285. The horizontal distance between thesixth lens 160 and the seventh lens 170 on the optical axis is denotedby IN67, wherein IN67=0.211 mm, and ED67/IN67=1.345. The sum of theaforementioned IN12 to IN67 is denoted by SIN, wherein SIN=8.418, andSED/SIN=1.102.

The optical image capturing system of the first embodiment satisfies:ED12/ED23=12.816; ED23/ED34=0.210; ED34/ED45=0.975; ED45/ED56=2.512;ED56/ED67=2.512; IN12/IN23=28.080; IN23/IN34=0.084; IN34/IN45=1.272;IN45/IN56=30.305; IN56/IN67=0.236.

The horizontal distance in parallel with the optical axis between acoordinate point at the height of ½ HEP on the image-side surface of theseventh lens 170 and image surface is denoted by EBL, wherein EBL=1.982mm. The horizontal distance in parallel with the optical axis betweenthe point on the image-side surface of the seventh lens 170 where theoptical axis passes through and the image plane is denoted by BL,wherein BL=2.517 mm. The optical image capturing system of the firstembodiment satisfies: EBL/BL=0.7874. The horizontal distance in parallelwith the optical axis between the coordinate point at the height of ½HEP on the image-side surface of the seventh lens 170 and the infraredrays filter 180 is denoted by EIR, wherein EIR=0.865 mm. The horizontaldistance in parallel with the optical axis between the point on theimage-side surface of the seventh lens 170 where the optical axis passesthrough and the infrared rays filter 180 is denoted by PIR, whereinPIR=1.400 mm, and it satisfies: EIR/PIR=0.618.

The description below and the features related to inflection points areobtained based on main reference wavelength of 555 nm.

The infrared rays filter 180 is made of glass and between the seventhlens 170 and the image plane 190. The infrared rays filter 180 gives nocontribution to the focal length of the system.

The optical image capturing system 10 of the first embodiment has thefollowing parameters, which are f=4.3019 mm; f/HEP=1.2; HAF=59.9968degrees; and tan(HAF)=1.7318, where f is a focal length of the system;HAF is a half of the maximum field angle; and HEP is an entrance pupildiameter.

The parameters of the lenses of the first embodiment are f1=−14.5286 mm;|f/f1|=0.2961; f7=8.2933; |f1|>f7; and |f1/f7|=1.7519, where f1 is afocal length of the first lens 110; and f7 is a focal length of theseventh lens 170.

The first embodiment further satisfies|f2|+|f3|+|f4|+|f5|+|f6|=144.7494; |f1|+|f7|=22.8219 and|f2|+|f3|+|f4|+|f5|+|f6|>|f1|+|f7|, where f2 is a focal length of thesecond lens 120, f3 is a focal length of the third lens 130, f4 is afocal length of the fourth lens 140, f5 is a focal length of the fifthlens 150, f6 is a focal length of the sixth lens 160, and f7 is a focallength of the seventh lens 170.

The optical image capturing system 10 of the first embodiment furthersatisfies ΣPPR=f/f2+f/f4+f/f5+f/f/7=1.7384; ΣNPR=f/f1+f/f3+f/f6=−0.9999;ΣPPR/|ΣNPR|=1.7386; |f/f2|=0.1774; |f/f3|=0.0443; |f/f4|=0.4411;|f/f5=0.6012; |f/f6|=0.6595; |f/f7|=0.5187, where PPR is a ratio of afocal length f of the optical image capturing system to a focal lengthfp of each of the lenses with positive refractive power; and NPR is aratio of a focal length f of the optical image capturing system to afocal length fn of each of lenses with negative refractive power.

The optical image capturing system 10 of the first embodiment furthersatisfies InTL+BFL=HOS; HOS=26.979 mm; HOI=7.5 mm; HOS/HOI=3.5977;HOS/f=6.2715; InS=12.4615 mm; and InS/HOS=0.4619, where InTL is adistance between the object-side surface 112 of the first lens 110 andthe image-side surface 174 of the seventh lens 170; HOS is a height ofthe image capturing system, i.e. a distance between the object-sidesurface 112 of the first lens 110 and the image plane 190; InS is adistance between the aperture 100 and the image plane 190; HOI is a halfof a diagonal of an effective sensing area of the image sensor 192,i.e., the maximum image height; and BFL is a distance between theimage-side surface 174 of the seventh lens 170 and the image plane 190.

The optical image capturing system 10 of the first embodiment furthersatisfies ΣTP=16.0446 mm; and ΣTP/InTL=0.6559, where ΣTP is a sum of thethicknesses of the lenses 110-150 with refractive power. It is helpfulfor the contrast of image and yield rate of manufacture and provides asuitable back focal length for installation of other elements.

The optical image capturing system 10 of the first embodiment furthersatisfies |R1/R2|=129.9952, where R1 is a radius of curvature of theobject-side surface 112 of the first lens 110, and R2 is a radius ofcurvature of the image-side surface 114 of the first lens 110. Itprovides the first lens with a suitable positive refractive power toreduce the increase rate of the spherical aberration.

The optical image capturing system 10 of the first embodiment furthersatisfies (R13−R14)/(R13+R14)=−0.0806, where R13 is a radius ofcurvature of the object-side surface 172 of the seventh lens 170, andR14 is a radius of curvature of the image-side surface 174 of theseventh lens 170. It may modify the astigmatic field curvature.

The optical image capturing system 10 of the first embodiment furthersatisfies ΣPP=f2+f4+f5+f7=49.4535 mm; and f4/(f2+f4+f5+f7)=0.1972, whereΣPP is a sum of the focal lengths fp of each lens with positiverefractive power. It is helpful to share the positive refractive powerof the fourth lens 140 to other positive lenses to avoid the significantaberration caused by the incident rays.

The optical image capturing system 10 of the first embodiment furthersatisfies ΣNP=f1+f3+f6=−118.1178 mm; and f1/(f1+f3+f6)=0.1677, where ΣNPis a sum of the focal lengths fn of each lens with negative refractivepower. It is helpful to share the negative refractive power of the firstlens 110 to the other negative lens, which avoid the significantaberration caused by the incident rays.

The optical image capturing system 10 of the first embodiment furthersatisfies IN12=4.5524 mm; IN12/f=1.0582, where IN12 is a distance on theoptical axis between the first lens 110 and the second lens 120. It maycorrect chromatic aberration and improve the performance.

The optical image capturing system 10 of the first embodiment furthersatisfies TP1=2.2761 mm; TP2=0.2398 mm; and (TP1+IN12)/TP2=1.3032, whereTP1 is a central thickness of the first lens 110 on the optical axis,and TP2 is a central thickness of the second lens 120 on the opticalaxis. It may control the sensitivity of manufacture of the system andimprove the performance.

The optical image capturing system 10 of the first embodiment furthersatisfies TP6=0.3000 mm; TP7=1.1182 mm; and (TP7+IN67)/TP6=4.4322, whereTP6 is a central thickness of the sixth lens 160 on the optical axis,TP7 is a central thickness of the seventh lens 170 on the optical axis,and IN67 is a distance on the optical axis between the sixth lens 160and the seventh lens 170. It may control the sensitivity of manufactureof the system and lower the total height of the system.

The optical image capturing system 10 of the first embodiment furthersatisfies TP3=0.8369 mm; TP4=2.0022 mm; TP5=4.2706 mm; IN34=1.9268 mm;IN45=1.5153 mm; and TP4/(IN34+TP4+IN45)=0.3678, where TP3 is a centralthickness of the third lens 130 on the optical axis, TP4 is a centralthickness of the fourth lens 140 on the optical axis, TP5 is a centralthickness of the fifth lens 150 on the optical axis; IN34 is a distanceon the optical axis between the third lens 130 and the fourth lens 140;IN45 is a distance on the optical axis between the fourth lens 140 andthe fifth lens 150; InTL is a distance between the object-side surface112 of the first lens 110 and the image-side surface 174 of the seventhlens 170. It may control the sensitivity of manufacture of the systemand lower the total height of the system.

The optical image capturing system 10 of the first embodiment furthersatisfies InRS61=−0.7823 mm; InRS62=−0.2166 mm; and |InRS62|/TP6=0.722,where InRS61 is a displacement from a point on the object-side surface162 of the sixth lens 160 passed through by the optical axis to a pointon the optical axis where a projection of the maximum effective semidiameter of the object-side surface 162 of the sixth lens 160 ends;InRS62 is a displacement from a point on the image-side surface 164 ofthe sixth lens 160 passed through by the optical axis to a point on theoptical axis where a projection of the maximum effective semi diameterof the image-side surface 164 of the sixth lens 160 ends; and TP6 is acentral thickness of the sixth lens 160 on the optical axis. It ishelpful for manufacturing and shaping of the lenses and is helpful toreduce the size.

The optical image capturing system 10 of the first embodiment furthersatisfies HVT61=3.3498 mm; HVT62=3.9860 mm; and HVT61/HVT62=0.8404,where HVT61 is a distance perpendicular to the optical axis between thecritical point on the object-side surface 162 of the sixth lens 160 andthe optical axis; and HVT62 is a distance perpendicular to the opticalaxis between the critical point on the image-side surface 164 of thesixth lens 160 and the optical axis.

The optical image capturing system 10 of the first embodiment furthersatisfies InRS71=−0.2756 mm; InRS72=−0.0938 mm; and |InRS72|/TP7=0.0839,where InRS71 is a displacement from a point on the object-side surface172 of the seventh lens 170 passed through by the optical axis to apoint on the optical axis where a projection of the maximum effectivesemi diameter of the object-side surface 172 of the seventh lens 170ends; InRS72 is a displacement from a point on the image-side surface174 of the seventh lens 170 passed through by the optical axis to apoint on the optical axis where a projection of the maximum effectivesemi diameter of the image-side surface 174 of the seventh lens 170ends; and TP7 is a central thickness of the seventh lens 170 on theoptical axis. It is helpful for manufacturing and shaping of the lensesand is helpful to reduce the size.

The optical image capturing system 10 of the first embodiment satisfiesHVT71=3.6822 mm; HVT72=4.0606 mm; and HVT71/HVT72=0.9068, where HVT71 isa distance perpendicular to the optical axis between the critical pointon the object-side surface 172 of the seventh lens 170 and the opticalaxis; and HVT72 is a distance perpendicular to the optical axis betweenthe critical point on the image-side surface 174 of the seventh lens 170and the optical axis.

The optical image capturing system 10 of the first embodiment satisfiesHVT72/HOI=0.5414. It is helpful for correction of the aberration of theperipheral view field of the optical image capturing system.

The optical image capturing system 10 of the first embodiment satisfiesHVT72/HOS=0.1505. It is helpful for correction of the aberration of theperipheral view field of the optical image capturing system.

The second lens 120, the third lens 130, and the seventh lens 170 havenegative refractive power. The optical image capturing system 10 of thefirst embodiment further satisfies 1≤NA7/NA2, where NA2 is an Abbenumber of the second lens 120; NA3 is an Abbe number of the third lens130; and NA7 is an Abbe number of the seventh lens 170. It may correctthe aberration of the optical image capturing system.

The optical image capturing system 10 of the first embodiment furthersatisfies |TDT|=2.5678%; |ODT|=2.1302%, where TDT is TV distortion; andODT is optical distortion.

For the optical image capturing system of the first embodiment, thevalues of MTF in the spatial frequency of 55 cycles/mm at the opticalaxis, 0.3 field of view, and 0.7 field of view of visible light on animage plane are respectively denoted by MTFE0, MTFE3, and MTFE7, whereinMTFE0 is around 0.35, MTFE3 is around 0.14, and MTFE7 is around 0.28;the values of MTF in the spatial frequency of 110 cycles/mm at theoptical axis, 0.3 field of view, and 0.7 field of view of visible lighton an image plane are respectively denoted by MTFQ0, MTFQ3, and MTFQ7,wherein MTFQ0 is around 0.126, MTFQ3 is around 0.075, and MTFQ7 isaround 0.177; the values of modulation transfer function (MTF) in thespatial frequency of 220 cycles/mm at the optical axis, 0.3 field ofview, and 0.7 field of view on an image plane are respectively denotedby MTFH0, MTFH3, and MTFH7, wherein MTFH0 is around 0.01, MTFH3 isaround 0.01, and MTFH7 is around 0.01.

For the optical image capturing system of the first embodiment, when theinfrared of wavelength of 850 nm focuses on the image plane, the valuesof MTF in spatial frequency (55 cycles/mm) at the optical axis, 0.3 HOI,and 0.7 HOI on an image plane are respectively denoted by MTFI0, MTFI3,and MTFI7, wherein MTFI0 is around 0.01, MTFI3 is around 0.01, and MTFI7is around 0.01.

The parameters of the lenses of the first embodiment are listed in Table1 and Table 2.

TABLE 1 f = 4.3019 mm; f/HEP = 1.2; HAF = 59.9968 deg Focal ThicknssRefractive Abbe length Surface Radius of curvatire (mm) (mm) Materialindex number (mm) 0 Object plane infinity 1 1^(st) lens −1079.4999642.276 plastic 1.565 58.00 −14.53 2 8.304149657 4.552 3 2^(nd) lens14.39130913 5.240 plastic 1.650 21.40 24.25 4 130.0869482 0.162 5 3^(rd)lens 8.167310118 0.837 plastic 1.650 21.40 −97.07 6 6.944477468 1.450 7Aperture plane 0.477 8 4^(th) lens 121.5965254 2.002 plastic 1.565 58.009.75 9 −5.755749302 1.515 10 5^(th) lens −86.27705938 4.271 plastic1.565 58.00 7.16 11 −3.942936258 0.050 12 6^(th) lens 4.867304751 0.300plastic 1.650 21.40 −6.52 13 2.220604983 0.211 14 7^(th) lens1.892510651 1.118 plastic 1.650 21.40 8.29 15 2.224128115 1.400 16Inflared plane 0.200 BK_7 1.517 64.2 rays filter 17 plane 0.917 18 Imageplane plane Reference wavelength (d-line): 555 mm.

TABLE 2 Coefficients of the aspheric surfaces Surface 1 2 3 4 5 6 8 k 2.500000E+01 −4.711931E−01  1.531617E+00 −1.153034E+01 −2.915013E+00 4.886991E+00 −3.459463E+01 A4  5.236918E−06 −2.117558E−04  7.146736E−05 4.353586E−04  5.793768E−04 −3.756697E−04 −1.292614E−03 A6 −3.014384E−08−1.838670E−06  2.334364E−06  1.400287E−05  2.112652E−04  3.901218E−04−1.602381E−05 A8 −2.487400E−10  9.605910E−09 −7.479362E−08 −1.688929E−07−1.344586E−05 −4.925422E−05 −8.452359E−06 A10  1.170000E−12−8.256000E−11  1.701570E−09  3.829807E−08  1.000482E−06  4.139741E−06 7.243999E−07 A12  0.000000E+00  0.000000E+00  0.000000E+00 0.000000E+00  0.000000E+00  0.000000E+00  0.000000E+00 A14 0.000000E+00  0.000000E+00  0.000000E+00  0.000000E+00  0.000000E+00 0.000000E+00  0.000000E+00 Surface 9 10 11 12 13 14 15 k −7.549291E+00−5.000000E+01 −1.740728E+00 −4.709650E+00 −4.509781E+00 −3.427137E+00−3.215123E+00 A4 −5.583548E−03  1.240671E−04  6.467538E−04 −1.872317E−03−8.967310E−04 −3.189453E−03 −2.815022E−03 A6  1.947110E−04 −4.949077E−05−4.981838E−05 −1.523141E−05 −2.688331E−05 −1.058126E−05  1.884580E−05 A8−1.486947E−05  2.088854E−06  9.129031E−07 −2.169414E−06 −8.324958E−07 1.760103E−06 −1.017223E−08 A10 −6.501246E−08 −1.438383E−08 7.108550E−09 −2.308304E−08 −6.184250E−09 −4.730294E−08  3.660000E−12A12  0.000000E+00  0.000000E+00  0.000000E+00  0.000000E+00 0.000000E+00  0.000000E+00  0.000000E+00 A14  0.000000E+00 0.000000E+00  0.000000E+00  0.000000E+00  0.000000E+00  0.000000E+00 0.000000E+00

The detail parameters of the first embodiment are listed in Table 1, inwhich the unit of the radius of curvature, thickness, and focal lengthare millimeter, and surface 0-10 indicates the surfaces of all elementsin the system in sequence from the object side to the image side. Table2 is the list of coefficients of the aspheric surfaces, in which A1-A20indicate the coefficients of aspheric surfaces from the first order tothe twentieth order of each aspheric surface. The following embodimentshave the similar diagrams and tables, which are the same as those of thefirst embodiment, so we do not describe it again.

Second Embodiment

As shown in FIG. 2A and FIG. 2B, an optical image capturing system 20 ofthe second embodiment of the present invention includes, along anoptical axis from an object side to an image side, an aperture 200, afirst lens 210, a second lens 220, a third lens 230, a fourth lens 240,a fifth lens 250, a sixth lens 260, a seventh lens 270, an infrared raysfilter 280, an image plane 290, and an image sensor 292. FIG. 2C shows amodulation transformation of the optical image capturing system 20 ofthe second embodiment of the present application in visible spectrum.

The first lens 210 has positive refractive power and is made of plastic.An object-side surface 212 thereof, which faces the object side, is aconvex aspheric surface, and an image-side surface 214 thereof whichfaces the image side, is a concave aspheric surface and has aninflection point.

The second lens 220 has positive refractive power and is made ofplastic. An object-side surface 222 thereof, which faces the objectside, is a convex aspheric surface, and an image-side surface 224thereof, which faces the image side, is a concave aspheric surface.

The third lens 230 has negative refractive power and is made of plastic.An object-side surface 232, Which faces the object side, is a convexaspheric surface, and an image-side surface 234, which faces the imageside, is a concave aspheric surface.

The fourth lens 240 has positive refractive power and is made ofplastic. An object-side surface 242, which faces the object side, is aconvex aspheric surface, and an image-side surface 244, which faces theimage side, is a concave aspheric surface. The object-side surface 242has two inflection points, and the image-side surface 244 has aninflection point.

The fifth lens 250 has positive refractive power and is made of plastic.An object-side surface 252, which faces the object side, is a concaveaspheric surface, and an image-side surface 254, which faces the imageside, is a convex aspheric surface. The image-side surface 254 has aninflection point.

The sixth lens 260 has negative refractive power and is made of plastic.An object-side surface 262, which faces the object side, is a concaveaspheric surface, and an image-side surface 264, which faces the imageside, is a concave aspheric surface. The image-side surface 264 has aninflection point. Whereby, the incident angle of each view fieldentering the sixth lens 260 can be effectively adjusted to improveaberration.

The seventh lens 270 has negative refractive power and is made ofplastic. An object-side surface 272, which faces the object side, is aconcave surface, and an image-side surface 274, which faces the imageside, is a convex surface. It may help to shorten the back focal lengthto keep small in size. In addition, the object-side surface 272 and theimage-side surface 274 both have an inflection point, which may reducean incident angle of the light of an off-axis field of view and correctthe aberration of the off-axis field of view.

The infrared rays filter 280 is made of glass and between the seventhlens 270 and the image plane 290. The infrared rays filter 280 gives nocontribution to the focal length of the system.

In this embodiment, a maximum effective semi diameter (11.56 mm) of thetenth surface, is used to replace HEP to calculate ETP values and EDvalues between the lenses.

The parameters of the lenses of the second embodiment are listed inTable 3 and Table 4.

TABLE 3 f = 27.4388 mm; f/HEP = 1.4; HAF = 15 deg Focal Radius ofcurvature Thickness Refractive Abbe length Surface (mm) (mm) Materialindex number (mm) 0 Object 1E+18 1E+13 1 Aperture 1E+18 −4.237 2 1^(st)lens 12.71550355 5.401 plastic 1.565 58.00 30.870 3 39.38397213 0.050 42^(nd) lens 9.96615671 4.504 plastic 1.565 58.00 27.919 5 22.520246070.397 6 3^(rd) lens 25.15689053 1.042 plastic 1.661 20.40 −16.029 77.376921867 2.775 8 4^(th) lens 7.010456919 1.311 plastic 1.514 56.80306.817 9 6.868711245 3.899 10 5^(th) lens −52.24612554 2.469 plastic1.661 20.40 18.679 11 −10.24765664 0.050 12 6^(th) lens −16.462306621.502 plastic 1.583 30.20 −25.882 13 201.3844149 0.354 14 7^(th) lens−60.33682163 2.393 plastic 1.650 21.40 −107.603 15 −424.122783 0.100 16Infrared 1E+18 0.200 BK_7 1.517 64.2 rays filter 17 1E+18 2.548 18 Image1E+18 0.005 plane Reference wavelength (d-line): 555 nm

TABLE 4 Coefficients of the aspheric surfaces Surface 2 3 4 5 6 7 8 k−6.838642E−02 −1.813190E+01  1.189616E−01 3.229629E+00 5.886526E−01 4.337356E−01 −1.033532E−01 A4  1.005574E−06 −3.684068E−05 −8.707148E−05−8.743023E−05  −6.522702E−05  −6.318582E−05 −9.461290E−04 A6−1.799939E−07 −7.219344E−08 −2.176949E−07 1.934756E−06 7.679094E−07−1.149427E−06 −5.373326E−06 A8 −1.322315E−10  1.113901E−09 −3.488997E−097.666910E−09 1.495820E−08 −7.985208E−08 −3.212543E−08 A10 −1.221323E−11−1.661247E−12  2.205674E−11 −2.644296E−10  −2.286171E−10  −1.239937E−10−5.715255E−12 A12  0.000000E+00  0.000000E+00  0.000000E+00 0.000000E+000.000000E+00  0.000000E+00  0.000000E+00 Surface 9 10 11 12 13 14 15 k−5.820180E−01  2.627258E+01 −1.918193E+00  2.846459E+00 −5.000000E+014.736034E+01 5.000000E+01 A4 −9.770370E−04 −8.520678E−04 −4.961656E−04−1.440441E−04 −4.881648E−05 −1.717491E−04  −8.231995E−04  A6−1.146040E−05 −2.086374E−05 −3.779103E−06  1.050780E−05 −6.246898E−06−1.812971E−06  4.461440E−07 A8  1.108083E−07 −7.353836E−07 −1.965945E−08−4.417302E−09 −4.825865E−08 5.743826E−08 6.309398E−08 A10 −4.810480E−09 2.233435E−08  4.851268E−09 −8.964480E−09  3.089499E−10 2.303254E−11−1.309448E−10  A12  0.000000E+00  0.000000E+00  0.000000E+00 0.000000E+00  0.000000E+00 0.000000E+00 0.000000E+00

An equation of the aspheric surfaces of the second embodiment is thesame as that of the first embodiment, and the definitions are the sameas well.

The exact parameters of the second embodiment based on Table 3 and Table4 are listed in the following table:

Second embodiment (Reference wavelength: 555 nm) MTFE0 MTFE3 MTFE7 MTFQ0MTFQ3 MTFQ7 0.87  0.87  0.86  0.7   0.07  0.66  ETP1 ETP2 ETP3 ETP4 ETP5ETP6 4.371 3.515 3.545  0.740  2.494  2.573 ETP7 ETL EBL EIN EIR PIR2.029 27.622  3.721  23.901  0.969  0.100 EIN/ETL SETP/EIN EIR/PIR SETPSTP SETP/STP 0.865 0.806 9.686  19.267  18.622  1.035 ETP1/TP1 ETP2/TP2ETP3/TP3 ETP4/TP4 ETP5/TP5 ETP6/TP6 0.809 0.780 3.403  0.564  1.010 1.713 ETP7/TP7 BL EBL/BL SED SIN SED/SIN 0.848 2.853 1.3049 4.634 7.525 0.616 ED12 ED23 ED34 ED45 ED56 ED67 1.466 0.265 1.265  0.767  0.769 0.103 ED12/IN12 ED23/IN23 ED34/IN34 ED45/IN45 ED56/IN56 ED67/IN6729.320  0.668 0.456  0.197  15.382  0.290 |f/f1| |f/f2| |f/f3| |f/f4||f/f5| |f/f6|  0.8889  0.9828 1.7118 0.0894 1.4690  1.0601 |f/f7| ΣPPRΣNPR ΣPPR/|ΣNPR| IN12/f IN67/f  0.2550  3.7503 2.7068  1.3855. 0.0018 0.0129 |f1/f2| |f2/f3| (TP1 + IN12)/TP2 (TP7 + IN67)/TP6  1.1057 1.7418 1.2101 1.8292 HOS InTL HOS/HOI InS/HOS ODT % TDT % 29.000026.1473 3.8667 0.8539 2.0000  1.6670 HVT11 HVT12 HVT21 HVT22 HVT31 HVT3210.0958  0.0000 0.0000 0.0000 0.0000  0.0000 HVT61 HVT62 HVT71 HVT72HVT72/HOI HVT72/HOS  0.0000  2.9797 0.0000 0.0000 0.0000  0.0000

The results of the equations of the second embodiment based on Table 3and Table 4 are listed in the following table:

Values, related to the inflection points of the second embodiment(Reference wavelength: 555 nm) HIF121 5.8976 HIF121/HOI 0.7863 SGI1210.3597 |SGI121|/(|SGI121| + TP1) 0.0624 HIF411 4.1300 HIF411/HOI 0.5507SGI411 1.0249 |SGI411|/(|SGI411| + TP4) 0.4387 HIF412 5.9769 HIF412/HOI0.7969 SGI412 1.6996 |SGI412|/(|SGI412| + TP4) 0.5645 HIF421 3.3269HIF421/HOI 0.4436 SGI421 0.6921 |SGI421|/(|SGI421| + TP4) 0.3455 HIF5215.5459 HIF521/HOI 0.7395 SGI521 −1.8748 |SGI521|/(|SGI521| + TP5) 0.4316HIF621 1.9317 HIF621/HOI 0.2576 SGI621 0.0082 |SGI621|/(|SGI621| + TP6)0.0055 HIF711 6.4256 HIF711/HOI 0.8567 SGI711 −0.6600|SGI711|/(|SGI711| + TP7) 0.2162 HIF721 7.5192 HIF721/HOI 1.0026 SGI721−2.0487 |SGI721|/(|SGI721| + TP7) 0.4612

Third Embodiment

As shown in FIG. 3A and FIG. 3B, an optical image capturing system ofthe third embodiment of the present invention includes, along an opticalaxis from an object side to an image side, a first lens 310, a secondlens 320, a third lens 330, an aperture 300, a fourth lens 340, a fifthlens 350, a sixth lens 360, a seventh lens 370, an infrared rays filter380, an image plane 390, and an image sensor 392. FIG. 3C shows amodulation transformation of the optical image capturing system 30 ofthe third embodiment of the present application in visible spectrum.

The first lens 310 has positive refractive power and is made of plastic.An object-side surface 312 thereof, which faces the object side, is aconvex aspheric surface, and an image-side surface 314 thereof, whichfaces the image side, is a convex aspheric surface and has an inflectionpoint.

The second lens 320 has positive refractive power and is made ofplastic. An object-side surface 322 thereof, which faces the objectside, is a convex aspheric surface, and an image-side surface 324thereof, which faces the image side, is a concave aspheric surface.

The third lens 330 has negative refractive power and is made of plastic.An object-side surface 332 thereof, which faces the object side, is aconcave aspheric surface, and an image-side surface 334 thereof, whichfaces the image side, is a concave aspheric surface. The object-sidesurface 332 has an inflection point.

The fourth lens 340 has positive refractive power and is made ofplastic. An object-side surface 342, which faces the object side, is aconvex aspheric surface, and an image-side surface 344, which faces theimage side, is a concave aspheric surface. The object-side surface 342has an inflection point.

The fifth lens 350 has positive refractive power and is made of plastic.An object-side surface 352, which faces the object side, is a concaveaspheric surface, and an image-side surface 354, which faces the imageside, is a convex aspheric surface. The object-side surface 352 has aninflection point.

The sixth lens 360 has positive refractive power and is made of plastic.An object-side surface 362, which faces the object side, is a concaveaspheric surface, and an image-side surface 364, which faces the imageside, is a convex aspheric surface. Whereby, the incident angle of eachview field entering the sixth lens 360 can be effectively adjusted toimprove aberration.

The seventh lens 370 has negative refractive power and is made ofplastic. An object-side surface 372, which faces the object side, is aconcave aspheric surface, and an image-side surface 374, which faces theimage side, is a convex aspheric surface. It may help to shorten theback focal length to keep small in size. In addition, the object-sidesurface 372 has an inflection point, which may reduce an incident angleof the light of an off-axis field of view and correct the aberration ofthe off-axis field of view.

The infrared rays filter 380 is made of glass and between the seventhlens 370 and the image plane 390. The infrared rays filter 390 gives nocontribution to the focal length of the system.

In this embodiment, a maximum effective diameter (9.29 mm) of the ninthsurface is used to replace HEP to calculate ETP values and ED valuesbetween the lenses.

The parameters of the lenses of the third embodiment are listed in Table5 and Table 6.

TABLE 5 f = 20.2142 mm; f/HEP = 1.4; HAF = 20 deg Focal Radius ofcurvature Thickness Refractive Abbe length Surface (mm) (mm) Materialindex number (mm) 0 Object 1E+18 1E+13 1 Aperture 1E+18 −3.796 2 1^(st)lens 8.268426898 5.461 plastic 1.565 58.00 13.992 3 −147.575233 0.050 42^(nd) lens 13.07739329 1.787 plastic 1.550 56.50 44.138 5 26.870552880.541 6 3^(rd) lens −99.53025223 0.653 plastic 1.661 20.40 −9.975 77.146444034 1.093 8 4^(th) lens 18.48849942 0.300 plastic 1.661 20.4036.992 9 73.34135708 1.807 10 5^(th) lens −40.40964071 0.868 plastic1.661 20.40 526.145 11 −36.54717581 2.517 12 6^(th) lens −468.89072062.231 plastic 1.661 20.40 22.355 13 −14.47433085 1.392 14 7^(th) lens−6.008669589 0.300 plastic 1.565 54.50 −15.356 15 −19.74823365 0.500 16Infrared 1E+18 0.200 BK_7 1.517 64.2 rays filter 17 1E+18 1.813 18 Image1E+18 −0.013 plane Reference wavelength (d-line): 555 nm.

TABLE 6 Coefficients of the aspheric surfaces Surface 2 3 4 5 6 7 8 k−1.026013E−01 2.497493E+01 3.915355E−02  3.585342E+00 −5.000000E+017.423193E−01  4.379919E+00 A4 −1.724565E−05 1.635694E−04 −2.152556E−04 −3.702914E−05  3.968079E−04 −1.026346E−03  −1.122137E−04 A6−7.504134E−07 −1.012046E−06  3.830575E−06 −4.990056E−06 −4.595278E−061.112878E−05 −1.407946E−06 A8  6.222329E−09 1.559585E−08 6.203744E−08 2.189076E−07 −1.768004E−07 −1.597546E−06  −8.776235E−08 A10−3.447995E−10 1.420786E−11 2.921455E−09 −2.244198E−09  5.759497E−091.454611E−08 −3.124369E−08 A12  0.000000E+00 0.000000E+00 0.000000E+00 0.000000E+00  0.000000E+00 0.000000E+00  0.000000E+00 Surface 9 10 1112 13 14 15 k 5.000000E+01  4.394348E+01  4.661528E+01  5.000000E+01−1.526903E+01 −4.404138E+00 −3.837931E+01 A4 8.692793E−04 −9.577010E−04−1.191368E−03 −7.860330E−04 −6.123621E−04 −1.828619E−04 −3.177269E−04 A61.781497E−05 −4.213231E−06 −3.848471E−06 −2.697539E−05 −1.219225E−05 3.528622E−06 −2.168652E−06 A8 3.958425E−08  5.543165E−07  4.884742E−07−8.972225E−08 −6.019655E−08 −1.396472E−08 −5.038732E−08 A10 3.182176E−08−3.107886E−08 −2.261991E−08 −7.461242E−09  6.910161E−10  8.636526E−11 3.280701E−10 A12 0.000000E+00  0.000000E+00  0.000000E+00  0.000000E+00 0.000000E+00  0.000000E+00  0.000000E+00

An equation of the aspheric surfaces of the third embodiment is the sameas that of the first embodiment, and the definitions are the same aswell.

The exact parameters of the third embodiment based on Table 5 and Table6 are listed in the following table:

Third embodiment (Reference wavelength: 555 nm) MTFE0 MTFE3 MTFE7 MTFQ0MTFQ3 MTFQ7 0.87  0.8  0.83  0.64  0.47  0.5  ETP1 ETP2 ETP3 ETP4 ETP5ETP6 4.060 1.354 1.982 0.784 0.715 1.948 ETP7 ETL EBL EIN EIR PIR 1.08620.103  3.076 17.027  1.076 0.500 EIN/ETL SETP/EIN EIR/PIR SETP STPSETP/STP 0.847 0.701 2.152 11.928  11.600  1.028 ETP1/TP1 ETP2/TP2ETP3/TP3 ETP4/TP4 ETP5/TP5 ETP6/TP6 0.743 0.757 3.034 2.612 0.824 0.873ETP7/TP7 BL EBL/BL SED SIN SED/SIN 3.619 2.500 1.2304 5.099 7.400 0.689ED12 ED23 ED34 ED45 ED56 ED67 0.873 0.176 0.155 0.072 2.795 1.027ED12/IN12 ED23/IN23 ED34/IN34 ED45/IN45 ED56/IN56 ED67/IN67 17.465 0.326 0.142 0.040 1.110 0.738 |f/f1| |f/f2| |f/f3| |f/f4| |f/f5| |f/f6| 1.4447  0.4580  2.0265  0.5464  0.0384  0.9042 |f/f7| ΣPPR ΣNPRΣPPR/|ΣNPR| IN12/f INT67/f  1.3164  4.9219  1.8128  2.7151  0.0025 0.0689 |f1/f2| |f2/f3| (TP1 + IN12)/TP2 (TP7 + IN67)/TP6  0.3170 4.4248 3.0844 0.7587 HOS InTL HOS/HOI InS/HOS ODT % TDT % 21.500019.0000  2.8667  0.8235  2.0000  0.8508 HVT11 HVT12 HVT21 HVT22 HVT31HVT32  0.0000 3.3673  0.0000  0.0000  2.7261  0.0000 HVT61 HVT62 HVT71HVT72 HVT72/HOI HVT72/HOS  0.0000  0.0000  0.0000  0.0000  0.0000 0.0000

The results of the equations of the third embodiment based on Table 5and Table 6 are listed in the following table:

Values related to the inflection points of the third embodiment(Reference wavelength: 555 nm) HIF121 1.9130 HIF121/HOI 0.2551 SGI121−0.0103 |SGI121|/(|SGI121| + TP1) 0.0019 HIF311 1.4973 HIF311/HOI 0.1996SGI311 −0.0093 |SGI311|/(|SGI311| + TP3) 0.0140 HIF411 3.3536 HIF411/HOI0.4471 SGI411 0.2957 |SGI411|/(|SGI411| + TP4) 0.4964 HIF711 5.6560HIF711/HOI 0.7541 SGI711 −1.8556 |SGI711|/(|SGI711| + TP7) 0.8608

Fourth Embodiment

As shown in FIG. 4A and FIG. 4B, an optical image capturing system 40 ofthe fourth embodiment of the present invention includes, along anoptical axis from an object side to an image side, an aperture 400, afirst lens 410, a second lens 420, a third lens 430, a fourth lens 440,a fifth lens 450, a sixth lens 460, a seventh lens 470, an infrared raysfilter 480, an image plane 490, and an image sensor 492. FIG. 4C shows amodulation transformation of the optical image capturing system 40 ofthe fourth embodiment of the present application in visible spectrum.

The first lens 410 has positive refractive power and is made of plastic.An object-side surface 412 thereof, which faces the object side, is aconvex aspheric surface, and an image-side surface 414 thereof, whichfaces the image side, is a convex aspheric surface. The image-sidesurface 414 has an inflection point.

The second lens 420 has positive refractive power and is made ofplastic. An object-side surface 422 thereof, which faces the objectside, is a convex aspheric surface, and an image-side surface 424thereof, which faces the image side, is a concave aspheric surface.

The third lens 430 has negative refractive power and is made of plastic.An object-side surface 432 thereof, which faces the object side, is aconvex aspheric surface, and an image-side surface 434 thereof, whichfaces the image side, is a concave aspheric surface.

The fourth lens 440 has negative refractive power and is made ofplastic. An object-side surface 442, which faces the object side, is aconvex aspheric surface, and an image-side surface 444, which faces theimage side, is a concave aspheric surface. The image-side surface 444has an inflection point.

The fifth lens 450 has positive refractive power and is made of plastic.An object-side surface 452, which faces the object side, is a convexaspheric surface, and an image-side surface 454, which faces the imageside, is a concave aspheric surface. The object-side surface 452 has aninflection point, and the image-side surface 454 has two inflectionpoints.

The sixth lens 460 has negative refractive power and is made of plastic.An object-side surface 462, which faces the object side, is a concavesurface, and an image-side surface 464, which faces the image side, is aconcave surface. The image-side surface 464 has an inflection point.Whereby, the incident angle of each view field entering the sixth lens460 can be effectively adjusted to improve aberration.

The seventh lens 470 has positive refractive power and is made ofplastic. An object-side surface 472, which faces the object side, is aconvex surface, and an image-side surface 474, which faces the imageside, is a concave surface. It may help to shorten the back focal lengthto keep small in size. The object-side surface 472 and the image-sidesurface 474 both have an inflection point. In addition, it may reduce anincident angle of the light of an off-axis field of view and correct theaberration of the off-axis field of view.

The infrared rays filter 480 is made of glass and between the seventhlens 470 and the image plane 490. The infrared rays filter 480 gives nocontribution to the focal length of the system.

In this embodiment, a maximum effective diameter (8.354 mm) of the tenthsurface is used to replace HEP to calculate ETP values and ED valuesbetween the lenses.

The parameters of the lenses of the fourth embodiment are listed inTable 7 and Table 8.

TABLE 7 f = 20.2155 mm: f/HEP = 1.6; HAF = 20 deg Focal Radius ofcurvature Thickness Refractive Abbe length Surface (mm) (mm) Materialindex number (mm) 0 Object 1E+18 1E+18 1 Aperture 1E+18 −3.459 2 1^(st)lens 7.00386366 5.601 plastic 1.565 58.00 10.257 3 −24.31110037 0.050 42^(nd) lens 45.90029251 0.300 plastic 1.661 20.40 419.064 5 54.778326670.050 6 3^(rd) lens 67.70886003 0.326 plastic 1.661 20.40 −17.068 79.724386101 1.582 8 4^(th) lens 15.11627991 0.805 plastic 1.514 56.80−51.604 9 9.465451841 2.206 10 5^(th) lens 14.25621175 0.829 plastic1.661 20.40 96.945 11 37.86421754 2.323 12 6^(th) lens −16.968499870.881 plastic 1.565 58.00 −19.309 13 31.40453832 0.433 14 7^(th) lens16.36028564 1.758 plastic 1.661 20.40 56.159 15 27.80432036 0.500 16Infrared 1E+18 0.200 BK_7 1.517 64.2 rays filter 17 1E+18 2.171 18 Image1E+18 −0.034 plane Reference wavelength (d-line): 555 nm.

TABLE 8 Coefficients of the aspheric surfaces Surface 2 3 4 5 6 7 8 k−1.809138E−01 −3.076996E+01 2.017100E+01 2.064606E+01  4.937361E4−011.962423E+00  2.170633E+00 A4 −1.329363E−05  2.946445E−04 −2.377517E−04 6.121873E−04 5.733525E−04 −4.993617E−04  −8.219639E−04 A6 −1.163205E−06−1.728447E−06 8.870397E−06 3.780790E−08 1.839468E−05 2.605521E−05−8.131488E−06 A8  4.497677E−08 −5.359113E−08 2.979170E−07 9.859914E−096.010309E−08 3.333354E−07  2.902613E−06 A10 −1.693399E−09  1.168999E−09−6.795876E−09  1.622781E−08 1.710851E−08 7.234915E−08 −2.311871E−08 A12 0.000000E+00  0.000000E+00 0.000000E+00 0.000000E+00 0.000000E+000.000000E+00  0.000000E+00 Surface 9 10 11 12 13 14 15 k −1.474257E+00−1.548409E+01 −1.618086E+01  1.189178E+01  2.561016E+01 −5.906104E+00−5.000000E+01 A4 −1.785897E−03 −1.849951E−03 −1.530702E−03 −2.650959E−03−2.564149E−03 −1.282980E−03 −1.472775E−03 A6  8.379151E−06 −6.877626E−05−3.797128E−05 −1.322045E−05 −7.910179E−06  2.745492E−05  3.140073E−05 A8 1.552936E−06 −6.417975E−06 −4.749987E−06  2.613703E−07  3.184314E−07−4.807726E−07 −4.457155E−07 A10 −6.369330E−08  1.894795E−07 2.652869E−07 −8.783248E−08 −1.781698E−08  3.607162E−09  1.496984E−09A12  0.000000E+00  0.000000E+00  0.000000E+00  0.000000E+00 0.000000E+00  0.000000E+00  0.000000E+00

An equation of the aspheric surfaces of the fourth embodiment is thesame as that of the first embodiment, and the definitions are the sameas well.

The exact parameters of the fourth embodiment based on Table 7 and Table8 are listed in the following table:

Fourth embodiment (Reference wavelength: 555 nm) MTFE0 MTFE3 MTFE7 MTFQ0MTFQ3 MTFQ7 0.85  0.84  0.78  0.57  0.56  0.45  ETP1 ETP2 ETP3 ETP4 ETP5ETP6 3.654 0.609 1.467 0.369 1.923 2.811 ETP7 ETL EBL EIN EIR PIR 1.40818.302  3.012 15.290  0.655 0.500 EIN/ETL SETP/EIN EIR/PIR SETP STPSETP/STP 0.835 0.801 1.309 12.242  10.500  1.166 ETP1/TP1 ETP2/TP2ETP3/TP3 ETP4/TP4 ETP5/TP5 ETP6/TP6 0.652 2.030 4.503 0.459 2.319 3.193ETP7/TP7 BL EBL/BL SED SIN SED/SIN 0.801 2.858  1.0539 3.049 6.643 0.459ED12 ED23 ED34 ED45 ED56 ED67 0.561 0.197 0.559 0.328 −0.096  1.501ED12/IN12 ED23/IN23 ED34/IN34 ED45/IN45 ED56/IN56 ED67/IN67 11.211 3.935 0.354 0.149 −0.041  3.470 |f/f1| |f/f2| |f/f3| |f/f4| |f/f5||f/f6|  1.9709  0.0482  1.1844  0.3917  0.2085  1.0469 |f/f7| ΣPPR ΣNPRΣPPR/|ΣNPR| IN12/f IN67/f  0.3600  4.5940  0.6167  7.4489  0.0025 0.0214 |f1/f2| |f2/f3| (TP1 + IN12)/TP2 (TP7 + IN67)/TP6  0.024524.5529 18.8365 2.4880 HOS InTL HOS/HOI InS/HOS ODT % TDT % 20.000017.1424  2.6667  0.8270  2.0000  1.2152 HVT11 HVT12 HVT21 HVT22 HVT31HVT32  0.0000  5.6702  0.0000  0.0000  0.0000  0.0000 HVT61 HVT62 HVT71HVT72 HVT72/HOI HVT72/HOS  0.0000  1.7908  4.0200  2.5057  0.3341 0.1253

The results of the equations of the fourth embodiment based on Table 7and Table 8 are listed in the following table:

Values related to the inflection points of the fourth embodiment(Reference wavelength: 555 nm) HIF121 2.8714 HIF121/HOI 0.3828 SGI121−0.1360 |SGI121|/(|SGI121| + TP1) 0.0237 HIF421 2.3473 HIF421/HOI 0.3130SGI421 0.2372 |SGI421|/(|SGI421| + TP4) 0.2277 HIF511 1.4334 HIF511/HOI0.1911 SGI511 0.0611 |SGI511|/(|SGI511| + TP5) 0.0686 HIF521 1.4835HIF521/HOI 0.1978 SGI521 0.0522 |SGI521|/(|SGI521| + TP5) 0.0592 HIF5224.0738 HIF522/HOI 0.5432 SGI522 −0.2241 |SGI522|/(|SGI522| + TP5) 0.2127HIF621 1.0360 HIF621/HOI 0.1381 SGI621 0.0143 |SGI621|/(|SGI621| + TP7)0.0159 HIF711 2.1074 HIF711/HOI 0.2S10 SGI711 0.1100|SGI711|/(|SGI711| + TP7) 0.0589 HIF721 1.3777 HIF721/HOI 0.1837 SGI7210.0281 |SGI721|/(|SGI721| + TP7) 0.0157

Fifth Embodiment

As shown in FIG. 5A and FIG. 5B, an optical image capturing system ofthe fifth embodiment of the present invention includes, along an opticalaxis from an object side to an image side, an aperture 500, a first lens510, a second lens 520, a third lens 530, a fourth lens 540, a fifthlens 550, a sixth lens 560, a seventh lens 570, an infrared rays filter580, an image plane 590, and an image sensor 592. FIG. 5C shows amodulation transformation of the optical image capturing system 50 ofthe fifth embodiment of the present application in visible spectrum, andFIG. 5D shows a modulation transformation of the optical image capturingsystem 50 of the fifth embodiment of the present application in infraredspectrum.

The first lens 510 has positive refractive power and is made of plastic.An object-side surface 512, which faces the object side, is a convexaspheric surface, and an image-side surface 514, which faces the imageside, is a convex aspheric surface. The image-side surface 514 has aninflection point.

The second lens 520 has negative refractive power and is made ofplastic. An object-side surface 522 thereof, which faces the objectside, is a convex aspheric surface, and an image-side surface 524thereof, which faces the image side, is a concave aspheric surface. Theobject-side surface 522 has two inflection points.

The third lens 530 has negative refractive power and is made of plastic.An object-side surface 532, which faces the object side, is a convexaspheric surface, and an image-side surface 534, which faces the imageside, is a concave aspheric surface.

The fourth lens 540 has positive refractive power and is made ofplastic. An object-side surface 542, which faces the object side, is aconvex aspheric surface, and an image-side surface 544, which faces theimage side, is a concave aspheric surface. The object-side surface 542has two inflection points and the image-side surface 544 has aninflection point.

The fifth lens 550 has positive refractive power and is made of plastic.An object-side surface 552, which faces the object side, is a convexaspheric surface, and an image-side surface 554, which faces the imageside, is a convex aspheric surface. The image-side surface 554 has twoinflection points.

The sixth lens 560 has positive refractive power and is made of plastic.An object-side surface 562, which faces the object side, is a convexaspheric surface, and an image-side surface 564, which faces the imageside, is a convex aspheric surface. The object-side surface 562 has aninflection point. Whereby, the incident angle of each view fieldentering the sixth lens 560 can be effectively adjusted to improveaberration.

The seventh lens 570 has negative refractive power and is made ofplastic. An object-side surface 572, which faces the object side, is aconcave aspheric surface, and an image-side surface 574, which faces theimage side, is a concave aspheric surface. The object-side surface 572has two inflection points and the image-side surface 574 has aninflection point. It may help to shorten the back focal length to keepsmall in size. In addition, it could effectively suppress the incidenceangle of light in the off-axis view field, and correct the off-axis viewfield aberration.

The infrared rays filter 580 is made of glass and between the seventhlens 570 and the image plane 590. The infrared rays filter 580 gives nocontribution to the focal length of the system.

In this embodiment, a maximum effective diameter (8.576 mm) of the fifthsurface is used to replace HEP to calculate ETP values and ED valuesbetween the lenses.

The parameters of the lenses of the fifth embodiment are listed in Table9 and Table 10.

TABLE 9 f = 15.7677 mm; f/HEP = 1.4; HAF = 25 deg Focal Radius ofcurvature Thickness Refractive Abbe length Surface (mm) (mm) Materialindex number (nun) 0 Object 1E+18 1E+18 1 Aperture 1E+18 −3.006 2 1^(st)lens 6.623069803 4.431 plastic 1.565 58.00 11.635 3 −1149.927673 0.050 42^(nd) lens 9.052405475 0.598 plastic 1.661 20.40 −18.271 5 5.0562892510.644 6 3^(rd) lens 5.101625621 0.461 plastic 1.565 58.00 −165.755 74.680607052 1.223 8 4^(th) lens 6.60492247 0.908 plastic 1.514 56.8081.309 9 7.473464219 1.606 10 5^(th) lens 175.3482865 1.053 plastic1.583 30.20 30.561 11 −19.92015517 1.323 12 6^(th) lens 51.428168282.193 plastic 1.661 20.40 14.066 13 −11.2753669 0.312 14 7^(th) lens0.662 plastic 1.583 30.20 −8.322 15 42.90385452 0.100 16 Infrared 1E+180.200 BK_7 1.517 64.2 rays filter 17 1E+18 2.235 18 Image 1E+18 0.001plane Reference wavelength (d-line): 555 nm; the position of blockinglight: none.

TABLE 10 Coefficients of the aspheric surfaces Surface 2 3 4 5 6 7 8 k−1.004667E−01 5.000000E+01 −7.862352E+00 1.846433E−01 −2.248921E−03 −8.811608E−02  −1.155967E+00 A4  2.763284E−06 1.136226E−04 −9.941759E−04−2.769078E−03  −3.186859E−03  −4.132631E−03  −9.781030E−04 A6−9.436319E−07 −3.162127E−06   1.268500E−05 1.603876E−05 −3.380528E−05 1.943385E−06 −3.096365E−05 A8  7.011840E−08 7.352234E−08  8.519317E−07−4.378390E−07  7.537201E−07 1.431848E−06  5.683907E−07 A10 −1.459276E−092.161122E−10 −1.571310E−08 2.559813E−08 9.623212E−08 3.978727E−08 2.196053E−08 A12  0.000000E+00 0.000000E+00  0.000000E+00 0.000000E+000.000000E+00 0.000000E+00  0.000000E+00 Surface 9 10 11 12 13 14 15 k−1.046906E+00 5.000000E+01 1.264509E+01 −5.000000E+01 1.886986E+00−2.410413E+00 1.380577E+01 A4 −9.624905E−04 −1.315187E−03 −2.160447E−03  −2.690504E−03 3.399276E−04  8.437972E−04 −8.381687E−04 A6 −4.535146E−05 3.000770E−06 6.304523E−05 −4.575391E−05 −3.788293E−05  4.129129E−06 6.032284E−06 A8  8.336764E−07 −1.792908E−06 −2.453654E−06  −8.947604E−08 −1.746756E−07  −7.844956E−08 6.795819E−08A10 −2.805849E−08 9.823424E−08 1.090221E−07 −6.898419E−08 1.632127E−08−5.181672E−09 −3.675863E−09  A12  0.000000E+00  0.000000E+000.000000E+00  0.000000E+00 0.000000E+00  0.000000E+00 0.000000E+00

An equation of the aspheric surfaces of the fifth embodiment is the sameas that of the first embodiment, and the definitions are the same aswell.

The exact parameters of the fifth embodiment based on Table 9 and Table10 are listed in the following table:

Fifth embodiment (Reference wavelength: 555 nm) MTFE0 MTFE3 MTFE7 MTFQ0MTFQ3 MTFQ7 0.85  0.83  0.84  0.62  0.55  0.62  ETP1 ETP2 ETP3 ETP4 ETP5ETP6 2.899 1.802 0.634 0.604 0.460 2.346 ETP7 ETL EBL EIN EIR PIR 1.75516.448  2.559 13.889  0.123 0.100 EIN/ETL SETP/EIN EIR/PIR SETP STPSETP/STP 0.844 0.756 1.230 10.500  10.306  1.019 FTP1/TP1 ETP2/TP2ETP3/TP3 ETP4/TP4 ETP5/TP5 ETP6/TP6 0.654 3.013 1.374 0.666 0.437 1.070ETP7/TP7 BL EBL/BL SED SIN SED/SIN 2.653 2.536  1.0091 3.389 5.158 0.657ED12 ED23 ED34 ED45 ED56 ED67 0.621 0.187 0.671 0.580 1.104 0.227ED12/IN12 ED23/IN23 ED34/IN34 ED45/IN45 ED56/IN56 ED67/IN67 12.413 0.290 0.549 0.361 0.834 0.727 |f/f1| |f/f2| |f/f3| |f/f4| |f/f5| |f/f6| 1.3552  0.8630  0.0951  0.1939  0.5159  1.1210 |f/f7| ΣPPR ΣNPRΣPPR/|ΣENPR| IN12/f IN67/f  1.8948  2.7653  3.2737  0.8447  0.0032 0.0198 |fl/f2| |f2/f3| (TP1 + IN12)/TP2 (TP7 + IN67)/TP6  0.6368 0.1102 7.4931 0.4441 HOS InTL HOS/HOI InS/HOS ODT % TDT % 18.000015.4640  2.4000  0.8330  1.9997  0.4755 HVT11 HVT12 HVT21 HVT22 HVT31HVT32  0.0000  1.4433  0.0000  0.0000  0.0000  0.0000 HVT61 HVT62 HVT71HVT72 HVT72/HOI HVT72/HOS  1.3054  0.0000  0.0000  2.8096  0.3746 0.1561

The results of the equations of fifth embodiment based on Table 9 andTable 10 are listed in the following table:

Values related to the inflection points of the fifth embodiment(Reference wavelength: 555 nm) HIF121 0.8173 HIF121/HOI 0.1090 SGI121−0.0002 |SGI121|/(|SGI121| + TP1) 0.0001 HIF211 2.7697 HIF211/HOI 0.3693SGI211 0.3212 |SGI211|/(|SGI211| + TP2) 0.3494 HIF212 3.3525 HIF212/HOI0.4470 SGI212 0.4220 |SGI212|/(|SGI212| + TP2) 0.4137 HIF411 2.9967HIF411/HOI 0.3996 SGI411 0.5781 |SGI411|/(|SGI411| + TP4) 0.3891 HIF4124.1636 HIF412/HOI 0.5551 SGI412 0.9230 |SGI412|/(|SGI412| + TP4) 0.5042HIF421 2.6113 HIF421/HOI 0.3482 SGI421 0.3978 |SGI421|/(|SGI421| + TP4)0.3047 HIF511 0.6016 HIF511/HOI 0.0802 SGI511 0.0009|SGI511|/(|SGI511| + TP5) 0.0008 HIF512 4.1084 HIF512/HOI 0.5478 SGI512−0.3227 |SGI512|/(|SGI512| + TP5) 0.2345 HIF521 4.0289 HIF521/HOI 0.5372SGI521 −0.8366 |SGI521|/(|SGI521| + TP5) 0.4427 HIF611 0.7605 HIF611/HOI0.1014 SGI611 0.0047 |SGI611|/(|SGI611| + TP6) 0.0021 HIF711 3.1379HIF711/HOI 0.4184 SGI711 −0.7216 |SGI711|/(|SGI713| + TP7) 0.5217 HIF7125.1040 HIF712/HOI 0.6805 SGI712 −1.3474 |SGI712|/(|SGI712| + TP7) 0.6706HIF721 1.5835 HIF721/HOI 0.2111 SGI721 0.0242 |SGI721|/(|SGI721| + TP7)0.0353

Sixth Embodiment

As shown in FIG. 6A and FIG. 6B, an optical image capturing system ofthe sixth embodiment of the present invention includes, along an opticalaxis from an object side to an image side, an aperture 600, a first lens610, a second lens 620, a third lens 630, a fourth lens 640, a fifthlens 650, a sixth lens 660, a seventh lens 670, an infrared rays filter680, an image plane 690, and an image sensor 692. FIG. 6C shows amodulation transformation of the optical image capturing system 60 ofthe sixth embodiment of the present application in visible spectrum.

The first lens 610 has positive refractive power and is made of plastic.An object-side surface 612, which faces the object side, is a convexaspheric surface, and an image-side surface 614, which faces the imageside, is a concave aspheric surface.

The second lens 620 has negative refractive power and is made ofplastic. An object-side surface 622 thereof, which faces the objectside, is a convex aspheric surface, and an image-side surface 624thereof, which faces the image side, is a concave aspheric surface.

The third lens 630 has positive refractive power and is made of plastic.An object-side surface 632, which faces the object side, is a convexaspheric surface, and an image-side surface 634, which faces the imageside, is a concave aspheric surface. The object-side surface 632 and theimage-side surface 634 both have two inflection points.

The fourth lens 640 has positive refractive power and is made ofplastic. An object-side surface 642, which faces the object side, is aconvex aspheric surface, and an image-side surface 644, which faces theimage side, is a concave aspheric surface. The object-side surface 642has two inflection points, and the image-side surface 644 has aninflection point.

The fifth lens 650 has positive refractive power and is made of plastic.An object-side surface 652, which faces the object side, is a concaveaspheric surface, and an image-side surface 654, which faces the imageside, is a convex aspheric surface. The object-side surface 652 and theimage-side surface 654 both have an inflection point.

The sixth lens 660 has negative refractive power and is made of plastic.An object-side surface 662, which faces the object side, is a concavesurface, and an image-side surface 664, which faces the image side, is aconcave surface. The image-side surface 664 has an inflection point.Whereby, the incident angle of each view field entering the sixth lens660 can be effectively adjusted to improve aberration.

The seventh lens 670 has negative refractive power and is made ofplastic. An object-side surface 672, which faces the object side, is aconvex surface, and an image-side surface 674, which faces the imageside, is a concave surface. The object-side surface 672 and theimage-side surface 674 both have an inflection point. It may help toshorten the back focal length to keep small in size. In addition, it mayreduce an incident angle of the light of an off-axis field of view andcorrect the aberration of the off-axis field of view.

The infrared rays filter 680 is made of glass and between the seventhlens 670 and the image plane 690. The infrared rays filter 680 gives nocontribution to the focal length of the system.

In this embodiment, a maximum effective diameter (6.612 mm) of the fifthsurface is used to replace HEP to calculate ETP values and ED valuesbetween the lenses.

The parameters of the lenses of the sixth embodiment are listed in Table11 and Table 12.

TABLE 11 f = 12.7353 mm; f/HEP = 1.6; HAF = 30 deg Focal Radius ofcurvature Thickness Refractive Abbe length Surface (mm) (mm) Materialindex number (mm) 0 Object 1E+18 1E+13 1 Aperture 1E+18 −1.973 2 1^(st)lens 4.968101946 2.593 plastic 1.565 58.00 10.271 3 27.48705714 0.050 42^(nd) lens 6.439955554 0.445 plastic 1.661 20.40 −18.829 5 4.138943551.079 6 3^(rd) lens 7.183399436 0.398 plastic 1.583 30.20 7579.870 77.047502098 0.464 8 4^(th) lens 13.14158239 1.266 plastic 1.565 58.0027.487 9 81.06220952 1.633 10 5^(th) lens −24.0646246 1.087 plastic1.640 23.30 15.949 11 −7.333592711 0.358 12 6^(th) lens −33.33704550.920 plastic 1.583 30.20 −10.380 13 7.524036279 0.216 14 7^(th) lens8.928204847 1.132 plastic 1.607 26.60 −81.037 15 7.200664007 1.000 16Infrared 1E+18 0.200 BK_7 1.517 64.2 rays filter 17 1E+18 1.458 18 Image1E+18 0.000 plane Reference wavelength (d-line): 555 nm; the position ofblocking light; blocking the fifth surface, and an effective radius ofthe fifth surface for passing light is 3.306 mm.

TABLE 12 Coefficients of the aspheric surfaces Surface 2 3 4 5 6 7 8 k 5.219626E−02 −6.842887E+00 −2.817088E−01 2.300609E−01 −2.026055E−01−3.345805E+00 −1.721279E+01 A4 −5.467945E−05 −2.459583E−04 −6.026961E−03−7.148339E−03  −4.980403E−03 −5.945890E−03 −2.265891E−03 A6−3.237865E−06 −1.185940E−05  2.803447E−04 3.184261E−04  1.916247E−04 1.559549E−04 −2.701198E−04 A8  1.297648E−07  2.668918E−06  3.474776E−06−2.921596E−06  −2.457163E−05 −1.055260E−05  3.590447E−05 A10−3.974113E−08 −6.035427E−08 −3.675583E−07 7.040570E−08  1.312472E−06 1.071031E−06 −8.469606E−07 A12  0.000000E+00  0.000000E+00 0.000000E+00 0.000000E+00  0.000000E+00  0.000000E+00  0.000000E+00Surface 9 10 11 12 13 14 15 k  2.628676E+01  3.971730E+01 1.751278E+00 5.000000E+01 −1.197987E+01 −5.000000E+01 −2.543751E+01 A4 −2.063995E−03 1.068655E−04 1.132525E−03 −6.415275E−03 −2.584385E−03 −2.953212E−03−4.044823E−03 A6 −2.368797E−04 −2.491712E−04 −2.827112E−05 −2.377760E−05 −3.748319E−06  6.321523E−05  1.028798E−04 A8  1.886941E−05−1.110971E−05 −2.175342E−05   1.048913E−05  1.849831E−06  1.517537E−06−2.936629E−08 A10 −7.180368E−07 −6.425700E−09 1.138806E−06 −3.345874E−07−5.518224E−08 −6.632441E−08 −2.845261E−08 A12  0.000000E+00 0.000000E+00 0.000000E+00  0.000000E+00  0.000000E+00  0.000000E+00 0.000000E+00

An equation of the aspheric surfaces of the sixth embodiment is the sameas that of the first embodiment, and the definitions are the same aswell.

The exact parameters of the sixth embodiment based on Table 11 and Table12 are listed in the following table:

Sixth embodiment (Reference wavelength: 555 nm) MTFE0 MTFE3 MTFE7 MTFQ0MTFQ3 MTFQ7 0.86  0.85  0.8  0.64  0.61  0.53  ETP1 ETP2 ETP3 ETP4 ETP5ETP6 1.516 1.248 0.298 0.836 0.935 2.041 ETP7 ETL EBL EIN EIR PIR 1.14913.044  2.576 10.468  0.918 1.000 EIN/ETL SETP/EIN EIR/PIR SETP STPSETP/STP 0.803 0.766 0.918 8.024 7.841 1.023 ETP1/TP1 ETP2/TP2 ETP3/TP3ETP4/TP4 ETP5/TP5 ETP6/TP6 0.585 2.806 0.748 0.660 0.861 2.219 ETP7/TP7BL EBL/BL SED SIN SED/SIN 1.015 2.659  0.9688 2.444 3.800 0.643 ED12ED23 ED34 ED45 ED56 ED67 0.403 0.050 0.359 1.184 0.396 0.052 ED12/IN12ED23/IN23 ED34/IN34 ED45/IN45 ED56/IN56 ED67/IN67 8.055 0.046 0.7740.725 1.106 0.240 |f/f1| |f/f2| |f/f3| |f/f4| |f/f5| |f/f6|  1.2399 0.6764  0.0017  0.4633  0.7985  1.2269 |f/f7| ΣPPR INPR ΣPPR/|ΣNPR|IN12/f IN67/f  0.1572  3.7302  0.8335  4.4752  0.0039  0.0170 |f1/f2||f2/f3| (TP1 + IN12)/TP2 (TP7 + IN67)/TP6  0.5455  0.0025 5.9418 1.4655HOS InTL HOS/HOI InS/HOS ODT % TDT % 14.3000 11.6415  1.9067  0.8620 2.0000  0.3796 HVT11 HVT12 HVT21 HVT22 HVT31 HVT32  0.0000  0.0000 0.0000  0.0000  0.0000  2.6305 HVT61 IIVT62 HVT71 HVT72 HVT72/HOIHVT72/HOS  0.0000  2.8920  2.3737  2.3849  0.3180  0.1668

The results of the equations of the sixth embodiment based on Table 11and Table 12 are listed in the following table:

Values related to the inflection points of the sixth embodiment(Reference wavelength: 555 nm) HIF311 1.6961 HIF311/HOI 0.2261 SGI3110.1644 |SGI311|/(|SGI311| + TP3) 0.2921 HIF312 3.2086 HIF312/HOI 0.4278SGI312 0.3046 |SGI312|/(|SGI312| + TP3) 0.4333 HIF321 1.3964 HIF321/HOI0.1862 SGI321 0.1137 |SGI321|/(|SGI321| + TP3) 0.2221 HIF322 2.9740HIF322/HOI 0.3965 SGI322 0.2090 |SGI322|/(|SGI322| + TP3) 0.3441 HIF4111.3084 HIF411/HOI 0.1745 SGI411 0.0550 |SGI411|/(|SGI411| + TP4) 0.0416HIF412 2.7921 HIF412/HOI 0.3723 SGI412 0.0987 |SGI412|/(|SGI412| + TP4)0.0723 HIF421 0.6680 HIF421/HOI 0.0891 SGI421 0.0023|SGI421|/(|SGI421| + TP4) 0.0018 HIF621 1.5572 HIF621/HOI 0.2076 SGI6210.1305 |SGI621|/(|SGI621| + TP6) 0.1242 HIF711 1.1705 HIF711/HOI 0.1561SGI711 0.0597 |SGI711|/(|SGI711| + TP7) 0.0501 HIF721 1.2021 HIF721/HOI0.1603 SGI721 0.0792 |SGI721|/(|SGI721| + TP7) 0.0654

It must be pointed out that the embodiments described above are onlysome embodiments of the present invention. An equivalent structureswhich employ the concepts disclosed in this specification and theappended claims should fall within the scope of the present invention.

What is claimed is:
 1. An optical image capturing system, in order alongan optical axis from an object side to an image side, comprising: afirst lens having refractive power; a second lens having refractivepower; a third lens having refractive power; a fourth lens havingrefractive power; a fifth lens having refractive power; a sixth lenshaving refractive power; a seventh lens having refractive power; and animage plane; wherein the optical image capturing system consists of theseven lenses with refractive power; at least one lens among the first tothe third lenses has positive refractive power; at least one lens amongthe fourth to the seventh lenses has positive refractive power; eachlens of the first to the seventh lenses has an object-side surface,which faces the object side, and an image-side surface, which faces theimage side; wherein the optical image capturing system satisfies:0.1≤f/HEP≤10.0;0 deg<HAF≤50 deg; and0.5≤SETP/STP<1; where f1, f2 f3, f4, f5, f6, and f7 are focal lengths ofthe first lens to the seventh lens, respectively; f is a focal length ofthe optical image capturing system; HEP is an entrance pupil diameter ofthe optical image capturing system; HOS is a distance between thecross-point of the object-side surface of the first lens and the opticalaxis, and the cross-point of the image plane and the optical axis; HOIis a maximum height for image formation perpendicular to the opticalaxis on the image plane; InTL is a distance from the object-side surfaceof the first lens to the image-side surface of the seventh lens; HAF isa half of a maximum field angle of the optical image capturing system;ETP1, ETP2, ETP3, ETP4, ETP5, ETP6, and ETP7 are respectively athickness at the height of ½ HEP of the first lens, the second lens, thethird lens, the fourth lens, the fifth lens, the sixth lens, and theseventh lens; SETP is a sum of the aforementioned ETP1 to ETP7; TP1,TP2, TP3, TP4, TP5, TP6, and TP7 are respectively a thickness of thefirst lens, the second lens, the third lens, the fourth lens, the fifthlens, the sixth lens, and the seventh lens on the optical axis; STP is asum of the aforementioned TP1 to TP7.
 2. The optical image capturingsystem of claim 1, wherein a distance between the first lens and thesecond lens on the optical axis is IN12; a distance between the secondlens and the third lens on the optical axis is IN23; a distance betweenthe third lens and the fourth lens on the optical axis is IN34; adistance between the fourth lens and the fifth lens on the optical axisis IN45, and the distances IN12, IN23, IN34 and IN45 satisfy:IN12+IN23<IN34+IN45.
 3. The optical image capturing system of claim 1,wherein the optical image capturing system further satisfies: MTFE0≥0.2;MTFE3≥0.01; and MTFE7≥0.01; where MTFE0, MTFE3, and MTFE7 arerespectively a value of modulation transfer function of visible light ina spatial frequency of 55 cycles/mm at the optical axis, 0.3 HOI, and0.7 HOI on an image plane for visible light.
 4. The optical imagecapturing system of claim 1, wherein the optical image capturing systemfurther satisfies:0.3≤SETP/EIN<1.
 5. The optical image capturing system of claim 1,further comprising a filtering component provided between the seventhlens and the image plane, wherein the optical image capturing systemfurther satisfies:0.1≤EIR/PIR≤1.1; where EIR is a horizontal distance in parallel with theoptical axis between the coordinate point at the height of ½ HEP on theimage-side surface of the seventh lens and the filtering component; PIRis a horizontal distance in parallel with the optical axis between apoint on the image-side surface of the seventh lens where the opticalaxis passes through and the filtering component.
 6. The optical imagecapturing system of claim 1, wherein the optical image capturing systemfurther satisfies:0.2≤EIN/ETL<1; where ETL is a distance in parallel with the optical axisbetween a coordinate point at a height of ½ HEP on the object-sidesurface of the first lens and the image plane; EIN is a distance inparallel with the optical axis between the coordinate point at theheight of ½ HEP on the object-side surface of the first lens and acoordinate point at a height of ½ HEP on the image-side surface of theseventh lens.
 7. The optical image capturing system of claim 1, whereinthe image plane includes a flat surface or a curved surface.
 8. Theoptical image capturing system of claim 1, wherein the optical imagecapturing system further satisfies:0.1≤EBL/BL≤1.5; where EBL is a horizontal distance in parallel with theoptical axis between a coordinate point at the height of ½ HEP on theimage-side surface of the seventh lens and image surface; BL is ahorizontal distance in parallel with the optical axis between the pointon the image-side surface of the seventh lens where the optical axispasses through and the image plane.
 9. The optical image capturingsystem of claim 1, further comprising an aperture, wherein the opticalimage capturing system further satisfies:0.1≤InS/HOS≤1.1; where InS is a distance on the optical axis between theaperture and the image plane.
 10. An optical image capturing system, inorder along an optical axis from an object side to an image side,comprising: a first lens having refractive power; a second lens havingrefractive power; a third lens having refractive power; a fourth lenshaving refractive power; a fifth lens having refractive power; a sixthlens having refractive power; a seventh lens having refractive power;and an image plane; wherein the optical image capturing system consistsof seven lens with refractive power; at least one lens among the firstlens to the third lens has positive refractive power; at least one lensamong the four lens to the seventh lens has positive refractive power;at least one surface of at least one lenses among the first lens to theseventh lens has at least an inflection point; each lens among the firstto the seventh lenses has an object-side surface, which faces the objectside, and an image-side surface, which faces the image side; wherein theoptical image capturing system satisfies:1.0≤f/HEP≤10.0;0 deg<HAF≤50 deg: and0.2≤EIN/ETL<1; where f1, f2, f3, f4, f5, f6, and f7 are focal lengths ofthe first lens to the seventh lens, respectively; f is a focal length ofthe optical image capturing system; HEP is an entrance pupil diameter ofthe optical image capturing system; HOS is a distance between thecross-point of the object-side surface of the first lens and the opticalaxis, and the cross-point of the image plane and the optical axis; HOIis a maximum height for image formation perpendicular to the opticalaxis on the image plane; InTL is a distance from the object-side surfaceof the first lens to the image-side surface of the seventh lens; HAF isa half of the maximum field angle of the optical image capturing system;ETL is a distance in parallel with the optical axis between a coordinatepoint at a height of ½ HEP on the object-side surface of the first lensand the image plane; EIN is a distance in parallel with the optical axisbetween the coordinate point at the height of ½ HEP on the object-sidesurface of the first lens and a coordinate point at a height of ½ HEP onthe image-side surface of the seventh lens.
 11. The optical imagecapturing system of claim 10, wherein the image-side surface of thesecond lens is concave on the optical axis, and the image-side surfaceof the third lens is concave on the optical axis.
 12. The optical imagecapturing system of claim 10, wherein the object-side surface of thefourth lens is convex on the optical axis.
 13. The optical imagecapturing system of claim 10, wherein a distance between the first lensand the second lens on the optical axis is IN12; a distance between thesecond lens and the third lens on the optical axis is IN23; a distancebetween the third lens and the fourth lens on the optical axis is IN34;a distance between the fourth lens and the fifth lens on the opticalaxis is IN45, and the distances IN12, IN23, IN34 and IN45 satisfy:IN12+IN23<IN34+IN45.
 14. The optical image capturing system of claim 10,wherein the optical image capturing system further satisfies: MTFQ0≤0.2;MTFQ3≤0.01; and MTFQ7≤0.01 where MTFQ0, MTFQ3, and MTFQ7 arerespectively values of modulation transfer function of visible light ina spatial frequency of 110 cycles/mm at the optical axis, 0.3 HOI, and0.7 HOI on the image plane for visible light.
 15. The optical imagecapturing system of claim 10, wherein the optical image capturing systemfurther satisfies:0<ED67/IN67≤50; where ED67 is a horizontal distance between the sixthlens and the seventh lens at the height of ½ HEP; IN67 is a horizontaldistance between the sixth lens and the seventh lens on the opticalaxis.
 16. The optical image capturing system of claim 10, wherein theoptical image capturing system further satisfies:0<ETP6/TP6≤3; where ETP6 is a thickness of the sixth lens at the heightof ½ HEP in parallel with the optical axis; TP6 is a thickness of thesixth lens on the optical axis.
 17. The optical image capturing systemof claim 10, wherein the optical image capturing system furthersatisfies:0<ETP7/TP7≤5; where ETP7 is a thickness of the seventh lens at theheight of ½ HEP in parallel with the optical axis; TP7 is a thickness ofthe seventh lens on the optical axis.
 18. The optical image capturingsystem of claim 10, wherein the optical image capturing system furthersatisfies:HOS/HOI≥1.2.
 19. The optical image capturing system of claim 10, whereinat least one lens among the first lens to the seventh lens is a lightfilter, which is capable of filtering out light of wavelengths shorterthan 500 nm.
 20. An optical image capturing system, in order along anoptical axis from an object side to an image side, comprising: a firstlens having positive refractive power; a second lens having refractivepower, an image-side surface of the second lens being concave on theoptical axis; a third lens having refractive power, an image-sidesurface of the third lens being concave on the optical surface; a fourthlens having refractive power; a fifth lens having refractive power; asixth lens having refractive power; a seventh lens having refractivepower; and an image plane; wherein the optical image capturing systemconsists of the seven lenses having refractive power; at least one lensamong the first lens to the third lens has positive refractive power; atleast one lens among the fourth lens to the seventh lens has positiverefractive power; at least one surface of each of at least two lensesamong the first lens to the seventh lens has at least an inflectionpoint; each lens of the first to the seventh lenses has an object-sidesurface, which faces the object side, and an image-side surface, whichfaces the image side; wherein the optical image capturing systemsatisfies:1.0≤f/HEP≤10;0 deg<HAF≤50 deg; and0.2≤EIN/ETL<1; where f1, f2 f3, f4, f5, f6, and f7 are focal lengths ofthe first lens to the seventh lens, respectively; f is a focal length ofthe optical image capturing system; HEP is an entrance pupil diameter ofthe optical image capturing system; HOS is a distance between thecross-point of the object-side surface of the first lens and the opticalaxis, and the cross-point of the image plane and the optical axis; HAFis a half of a maximum view angle of the optical image capturing system;HOI is a maximum height for image formation perpendicular to the opticalaxis on the image plane; ETL is a distance in parallel with the opticalaxis between a coordinate point at a height of ½ HEP on the object-sidesurface of the first lens and the image plane; EIN is a distance inparallel with the optical axis between the coordinate point at theheight of ½ HEP on the object-side surface of the first lens and acoordinate point at a height of ½ HEP on the image-side surface of theseventh lens.
 21. The optical image capturing system of claim 20,wherein the optical image capturing system further satisfies:0.1≤EBL/BL<1.5; where EBL is a horizontal distance in parallel with theoptical axis between a coordinate point at the height of ½ HEP on theimage-side surface of the seventh lens and image surface; BL is ahorizontal distance in parallel with the optical axis between the pointon the image-side surface of the seventh lens where the optical axispasses through and the image plane.
 22. The optical image capturingsystem of claim 20, wherein the optical image capturing system furthersatisfies:0.5≤HOS/HOI≤5.
 23. The optical image capturing system of claim 20,wherein the object-side surface of the fourth lens on the optical axisis a convex surface.
 24. The optical image capturing system of claim 20,wherein a distance between the first lens and the second lens on theoptical axis is IN12; a distance between the second lens and the thirdlens on the optical axis is IN23; a distance between the third lens andthe fourth lens on the optical axis is IN34; a distance between thefourth lens and the fifth lens on the optical axis is IN45, and thedistances IN12, IN23, IN34 and IN45 satisfy: IN12+IN23<IN34+IN45. 25.The optical image capturing system of claim 23, further comprising anaperture, an image sensor disposed on the image plane, and a drivingmodule, wherein the driving module can be coupled with the lenses tomove the lenses, and the optical image capturing system furthersatisfies:0.1≤InS/HOS≤1.1; where InS is a distance on the optical axis between theaperture and the image plane.